r/Bitcoin - How to run Bitcoin Core 0.20.0 on Ubuntu ...

Help with installing bitcoin-qt on ubuntu (booted from usb on a mac), from another usb

Hi everyone im quite new to bitcoin and this subreddit has been extremely helpful so thank you! Im trying to create an offline wallet and its so damn hard, since im not that good with computers... Anyways Ive been following the official guide on the bitcoin website (https://en.bitcoin.it/wiki/How_to_set_up_a_secure_offline_savings_wallet) and im on step 7 now which has been a difficult journey, (diretions on ubuntu is hard for the average user) I have downloaded bitcoin-0.8.6-linux and its on a seperate memory stick. On the read me file it says 'you need the Qt4 run-time libraries to run Bitcoin-Qt. On debian or ubuntu: 'sudo apt-get install libqtgui4'
Unpack the files into a directory and run:
-bin/32/bitcoin-qt (GUI, 32-bit) -bin/32/bitcoind (headless, 32-bit) -bin/64/bitcoin-qt (GUI, 64-bit) -bin/64/bitcoind (headless, 64-bit) '
K so typed sudo apt-get install libqtgui4 into terminal and it says 'libqtgui4 is already the newest version.' What do they mean by Unpack the files into a directory and run: ... ??
When I type -bin/64/bitcoin-qt (GUI, 64-bit) into terminal it says No such file or directory
When I double click on bitcoin-qt file it says 'Could not display "bitcoin-qt" There is no application installed for "executable" files. Do you want to search for an application to open this file? ' clicked yes then
It returns empty.
Thanks in advance for your help!
submitted by assthete to Bitcoin [link] [comments]

How to run Bitcoin Core 0.20.0 on Ubuntu Server 20.04 LTS using a Raspberry Pi 4 (or Virtual Machine)

I was helping someone on twitter with this so I figured I'd share the information here as well so that other people would have an easier time than I did.
I'm going to explain how to do this setup on a Raspberry Pi, but note that this should work on a VM as well. You can also set up and run the node headless this way, but I will be explaining how to set up the node using a monitor that you can then later disconnect and access remotely once everything is setup.
Hardware:
-Raspberry Pi 4 (2GB RAM minimum) preferably 4GB RAM -Raspberry Pi 4 Heatsinks -Raspberry Pi 4 case -Micro HDMI cable -USB-C power cable and wall adapter -Monitor -Keyboard and mouse -Ethernet cable (Optional) -16GB or larger microSD card -500GB or larger external hard drive (SSD or portable)
Node Requirements: -50 KBps upload internet speeds (Most people should have this) -Unlimited or high data cap internet download/upload service -6 hours or longer per day dedicated run time
Okay, once you have the hardware its time to get started!
The first thing you'll need to do is install the Raspberry Pi imager, this is how we're going to install Ubuntu onto our Raspberry Pi. After your download and install finishes, open the imager.
  1. Click the "choose OS" box and from the list select Ubuntu, then select Ubuntu Server 20.04 LTS (Raspberry Pi 2/3/4).
  2. Insert your microSD card to your computer directly or via a USB converter. Click "choose SD card" and select your inserted microSD card.
  3. Click "Write" and wait for the imager to finish flashing the OS onto your card
When it is done, remove the SD card and reinsert it to access the files installed. You can choose the overclock the Raspberry Pi by editing the config file. To connect to the Raspberry Pi remotely, you'll need to create an SSH file. If you're on windows this is pretty easy. In the File Explorer, highlight the address bar at the top, erase the text and type cmd, press enter and the Command Prompt will pop up. Type the following:
echo\ssh
This will create an SSH file in your SD directory so that you can remote access the Rasberry Pi later. Now you can go ahead and eject the SD card from your computer.
Now we can set up the Raspberry Pi
Go ahead and connect all your peripherals to your Raspberry Pi, insert the microSD, and connect it to power to turn it on. Give it a moment to boot up, then when prompted enter "ubuntu" for the password. It will make you change the password. Afterward, it will print a bunch of information to the screen, write down the IPv4 address, this is the IP address you'll use to remote access the Raspberry Pi. Now, at any time you can remote access your Raspberry Pi by entering a terminal on another PC in your network and typing:
ssh [email protected](your IP address)
The next step is to install a desktop. There are plenty to choose from so feel free to use a different one than what I use, you can also choose to ignore this and to just work from in the terminal from this point forward.
You need to update all the repositories so type: (Note you'll either have to be connected by ethernet or have edited the network-config file to setup your wifi in advance)
sudo apt-get update
Once it's done updating type the following to upgrade your system:
sudo apt-get upgrade
Now that you're up-to-date, you can install the desktop using the command:
sudo apt-get install ubuntu-gnome-desktop
This will take a while to download and install so just sit back and let it do its thing. Once it's done downloading, restart your Raspberry Pi and log in with the password you changed earlier. Your first boot may take a while so just be patient, don't freak out if you see a single purple square in the center of the screen while it's loading. You should now have the Ubuntu desktop ready to go and now it's on to installing Bitcoin Core!
Installing Bitcoin Core 0.20.0
Since we're running Ubuntu Server 20.04 LTS, it should come preinstalled with the Snap Store. This makes installing apps very easy and works similar to pip install in Python. Simply open your terminal and type:
sudo snap install bitcoin-core
This will install Bitcoin Core into your Snap folder and will add the application to your system. Unfortunately, there are still a few steps left before we can begin downloading the blockchain. By default, Bitcoin Core doesn't have the removable-media Plug connected to the Socket. You can view this by typing:
snap connections bitcoin-core
This means when you try installing everything onto your external hard drive, Bitcoin Core won't be able to identify it or write to it even when passed the directory path. To fix this first locate your Snap folder, make a copy of the bitcoin-core folder inside, and paste it into your external drive.
NOTE: You must make a copy, you can't just move the snap file to the external drive.
Now, you can connect the removable-media Plug to the Socket by typing:
sudo snap connect bitcoin-core:removable-media :removable-media
This gives you the read/write permissions necessary to access the /media path. Finally, you can now launch Bitcoin Core and select "use a custom directory path" when prompted. Highlight the current directory path and replace it with the path to your external hard drive, it should look something like this:
/media/(external drive)/bitcoin-core/common/.bitcoin
This is why we had to make a copy of the bitcoin-core folder to the external drive earlier, the Bitcoin Core application will create the new data directory through ".bitcoin". Hit "Okay" and the application will begin synchronizing with the network! Once the synchronization is finished your very own node will be up and running!
EDIT: (08/01/2020) Bitcoin Core 0.20.01 has been released, I will update the tutorial soon with how to run the latest release.
submitted by Noblefire_62 to Bitcoin [link] [comments]

If i boot ubuntu or tails from usb onto a compromised(hacked) laptop will the hacker be able to see or affect the non windows sections?

So i have an older Windows laptop I don't use because my system got completely pwned and it has some sort of virus, he has remote access to it (luckily the battery comes out so I never leave it in it) and he also has admin status on it (I don't)
Q: if I boot Ubuntu from a USB drive will he have access to that as well? And if I install Ubuntu as dual boot can he access the Ubuntu files?
Q#2: if I make a TAILS usb and boot that way can he still see or get to any files that way?
I know who did it.he WAS a friend until I figured that shit out. Dude litteraly hacked my parents computers and was veiwing our security cameras and then messaging me talking shit about it. And then I found out who he was. And then I found him... Lol
He's able to do Sim swapping and that level shit so he's pretty good I assume at these sorts of things. I found out over about a year or 2 that I was getting monitored then peiced it all together the day he tried pulling a (empty) Bitcoin wallet off my laptop.
Thank you guys and if your interested in the whole crazy story maybe I will make a full post About that 2 year ordeal of getting phones and entire networks pwned. Lol
submitted by fatbitchtangwrangler to privacytoolsIO [link] [comments]

Got hacked, and hacker played a joke on me?

Alright, i am paranoid now.
-I use Ubuntu 18.04, i rarely install software on it, i don't have pirated software either.
-I try to stick with trusted sources for package distribution (Don't think i even added an untrusted one)
-I do not download attachments from sketchy emails, and almost none in general
-I don't remember seeing porn on the PC, very rarely ever did it;
- I am the sole user of this desktop;
I am running clam AV through the whole system rn. Will update if something comes up.
Now, this appeared out of nowhere (gift icon appeared on desktop [for google]), i use chrome browser exclusively and if it was the case of me downloading it, it would appear on "downloads", i think.I don't use any other browser.And i didn't download it... but i would admit the possibility of having it downloaded unwillingly, but again, no record of downloading anything on chrome.
This seemed like a visitation card, or a joke - [After some introspection might be something more serious].My sensitive information is all relative to bank accounts, i have 2 factor authentication on almost everything, but if this a real threat should i have to go through the labor of changing every password?
What should i do?Thanks guys

TLDR;

A suspicious file appeared on my desktop, i didn't put there, only i use the computer;

Update:

There is one major detail that i forgot to add as i didn't pay much importance to it. I was given an external HDD to look at , out of curiosity, that came from a friend. His entire company network was affected by a ransomware. As it seems, his backup disks were too. And he handed me one just to look at. I never intended to connect this HDD to my computer with my main OS running
I've tried to peek into it by launching a live Kali session , thought it safer than a VM session.The disk wasn't mounting so i gave up pretty quickly. Now, i did end up restarting the computer, the HDD stayed connected almost until the Ubuntu login prompt appeared, i removed it immediately and didn't think much of it (As i thought this was probably a malware targeting Windows machines).
I might have a time bomb at hands, as i don't know if this Ransomware could be triggered remotely or if it really infected the machine, would it take immediate effect.
I am taking no chances, luckily i keep backups offline every week of important files, so i'll wipe the machine and be more careful next time.
You got to know how to play stupid games, to win stupid prizes . Thanks guys.

update 2:

User u/Frankstwo recommended to run last and coincidentally the last reboot date is consistent with the date of the file creation:
$ lastsousa :0 :0 Sun May 3 16:07 still logged inreboot system boot 5.3.0-51-generic Sun May 3 16:07 still running
The file creation appears as Sun May 3 16:08.
I haven't rebooted the computer ever since.

I am curious if some kind of DMA Attack was performed, because i haven't logged in BEFORE i removed the device from USB port. or could it be any other attack vector....

Update 3: i got hacked!

Holy crap! I rebooted the machine and I got a ransomware! In 15 years of using computers and internet this is the first time i got really hacked (that i know of...)
I keep minimal information on site luckily, i'm very intriged by what's in that HDD but i will toss it out... i'm kind of flabbergasted and dumbstruck . What a dumbass i was...
Never thought it possible on a linux environment though...
To finalize, why these guys always go with Bitcoins? I wonder if monero or ZCash isn't more suited for the purpose...
submitted by sousacanfly to cybersecurity [link] [comments]

06-16 12:55 - 'boss linux' (self.linux) by /u/bossdevelopers removed from /r/linux within 437-447min

'''
-BOSS PROJECT: Standing for Blockchain Operative System Series is a new Linux distribution based on ubuntu core with important changes, highly improved security and the default incorporation of blockchain services and support for cryptocurrencies.We have modified the original standards to transform it into a very useful tool for the entire bitcoin community consisting of an interesting combination of security, manageability, speed and performance. It can be used on any x64 X86 machine simply after installation.
.-BLOCKCHAIN FULLY DEDICATED: It has been more than a decade since the physical birth of cryptocurrencies, although the idea is over 50 years old. The future will undoubtedly be governed by blockchain systems and governments, banks and corporations are already taking positions in this regard. BOSS is not far behind. Now it is possible to mine even if it has not been done previously. For even more in-depth development of the blockchain applications included in BOSS operating systems, you have your own version of bitcoin PoW PoS mining: BitcoinBOSS. Our own blockchain that is enhanced with BOSS token erc20.
-BOSS SECURITY & PRIVACY FEATURES: A weak point of easy access for hacker attacks, such as automatic updates, has been modified so that the user can carry out his updates when he deems necessary and under monitoring. The elevated privileges allow you not only to modify the system, they also allow you to quickly act on files that are prohibited from accessing other operating systems. BOSS has installed active-passive security measures
-MAC ADDRESS DEFAULT SPOOFING: MAC address Spoofing privacy + from BOSS. Every time you log in to your BOSS computer, you are doing so with a different MAC address. Privacy thus reaches its highest degrees by making MAC-TRACK impossible
-LIGHTWEIGHT RECORD: BOSS has achieved maximum performance in a really small space. BOSS takes up very little space and can be downloaded via torrent or direct download through our mirrors. BOSS has concentrated a large operating system in a super small space of less than 1 GB, which puts us at the forefront among the lightest and safest distributions as leaders in relation to gb-installed applications.
-INSTALLATION PROCESS: BOSS installation is simple and guided using the ubiquity installer and depending on the performance of your system it can take between 15-30 minutes in normal circumstances. Download BOSS now and enjoy a high level of performance, security and privacy in an enviable small space. BOSS can be tested after installation, fully or partially installed on your system, together with windows or your favorite operating system.
.-POWERFUL RECOVERY TOOL: BOSS is an excellent file recovery tool. The combination of BOSS tools and its elevated privileges allow you to access areas hidden or inaccessible. Simply use BOSS live to freely rescue files from the laptop where the BOSS USB is inserted. Recover Bitcoin paraphrase or .DAT files easier and faster than other recovery programs simply by acceding to the file system where BOSS usb is inserted.
-STABLE RELEASES: BOSS V01-LTS Available now for download at sourceforge.
[**[link]2
FEATURING
-UNITY DESKTOP-BRAVE BROWSER-ATOMIC WALLET-COMMON UTILITIES-ELEVATED PRIVILEGES ENABLED.-MAC ADDRESS SPOOFING-FILE SYSTEM RECOVERY TOOL
-WE DELIVER BOSS: Using BOSS as removable OS is recommended if you do not want to install the system. For this our team recommends the use of persistent USB where your session is recorded and ready for the next login, find everything as you left it. BOSS makes available to its users the delivery of these persistent USB devices worldwide via regular mail or messaging. The flat rate of our installation on the USB and shipping to the user is USD 20 to which we must add the shipping costs in the options selected by the user. Please check with our team to process your shipment while this process is automated on our website. Order now your BOSS or a even more customized BOSS with your company requirements, logo etc. We deliver in CD, USB or SD card in your selected size from minimal 4GB, however 16GB and above are recommended.
[link]3
[link]4

[link]5
'''
boss linux
Go1dfish undelete link
unreddit undelete link
Author: bossdevelopers
1: *ourcef*r*e.**t/proj*cts/*oss-min*mi*al*ed**ion/ 2: sourceforge.net/pr*j*cts*****-mi*im**al-editio****]^*1 3: pr*vie*.*edd.it/2j0i*g*tk755*.p*g*wid*h*1*00&form*t*png&**uto*w**p*a*p;s=57745a79590667**059****948ab*84e*1*693*7 4: *revi*w.red*.it*9l8yh7ag*7551*png?wi*th=160*&a*p;fo*m**=png*amp;a*to=***p&s=acd*6e9**8d2*a**4d*b*14737cf**72**dcc2*5 5: pr**ie**re*d.it*3*qyxtw*k755*.*ng?wid**=*600*amp**ormat=p*g&am*;au*o=webp&am*;s=02b*905*4cb**f770b77*13a3*6**90fc*6*0d3b
Unknown links are censored to prevent spreading illicit content.
submitted by removalbot to removalbot [link] [comments]

Groestlcoin 6th Anniversary Release

Introduction

Dear Groestlers, it goes without saying that 2020 has been a difficult time for millions of people worldwide. The groestlcoin team would like to take this opportunity to wish everyone our best to everyone coping with the direct and indirect effects of COVID-19. Let it bring out the best in us all and show that collectively, we can conquer anything.
The centralised banks and our national governments are facing unprecedented times with interest rates worldwide dropping to record lows in places. Rest assured that this can only strengthen the fundamentals of all decentralised cryptocurrencies and the vision that was seeded with Satoshi's Bitcoin whitepaper over 10 years ago. Despite everything that has been thrown at us this year, the show must go on and the team will still progress and advance to continue the momentum that we have developed over the past 6 years.
In addition to this, we'd like to remind you all that this is Groestlcoin's 6th Birthday release! In terms of price there have been some crazy highs and lows over the years (with highs of around $2.60 and lows of $0.000077!), but in terms of value– Groestlcoin just keeps getting more valuable! In these uncertain times, one thing remains clear – Groestlcoin will keep going and keep innovating regardless. On with what has been worked on and completed over the past few months.

UPDATED - Groestlcoin Core 2.18.2

This is a major release of Groestlcoin Core with many protocol level improvements and code optimizations, featuring the technical equivalent of Bitcoin v0.18.2 but with Groestlcoin-specific patches. On a general level, most of what is new is a new 'Groestlcoin-wallet' tool which is now distributed alongside Groestlcoin Core's other executables.
NOTE: The 'Account' API has been removed from this version which was typically used in some tip bots. Please ensure you check the release notes from 2.17.2 for details on replacing this functionality.

How to Upgrade?

Windows
If you are running an older version, shut it down. Wait until it has completely shut down (which might take a few minutes for older versions), then run the installer.
OSX
If you are running an older version, shut it down. Wait until it has completely shut down (which might take a few minutes for older versions), run the dmg and drag Groestlcoin Core to Applications.
Ubuntu
http://groestlcoin.org/forum/index.php?topic=441.0

Other Linux

http://groestlcoin.org/forum/index.php?topic=97.0

Download

Download the Windows Installer (64 bit) here
Download the Windows Installer (32 bit) here
Download the Windows binaries (64 bit) here
Download the Windows binaries (32 bit) here
Download the OSX Installer here
Download the OSX binaries here
Download the Linux binaries (64 bit) here
Download the Linux binaries (32 bit) here
Download the ARM Linux binaries (64 bit) here
Download the ARM Linux binaries (32 bit) here

Source

ALL NEW - Groestlcoin Moonshine iOS/Android Wallet

Built with React Native, Moonshine utilizes Electrum-GRS's JSON-RPC methods to interact with the Groestlcoin network.
GRS Moonshine's intended use is as a hot wallet. Meaning, your keys are only as safe as the device you install this wallet on. As with any hot wallet, please ensure that you keep only a small, responsible amount of Groestlcoin on it at any given time.

Features

Download

iOS
Android

Source

ALL NEW! – HODL GRS Android Wallet

HODL GRS connects directly to the Groestlcoin network using SPV mode and doesn't rely on servers that can be hacked or disabled.
HODL GRS utilizes AES hardware encryption, app sandboxing, and the latest security features to protect users from malware, browser security holes, and even physical theft. Private keys are stored only in the secure enclave of the user's phone, inaccessible to anyone other than the user.
Simplicity and ease-of-use is the core design principle of HODL GRS. A simple recovery phrase (which we call a Backup Recovery Key) is all that is needed to restore the user's wallet if they ever lose or replace their device. HODL GRS is deterministic, which means the user's balance and transaction history can be recovered just from the backup recovery key.

Features

Download

Main Release (Main Net)
Testnet Release

Source

ALL NEW! – GroestlcoinSeed Savior

Groestlcoin Seed Savior is a tool for recovering BIP39 seed phrases.
This tool is meant to help users with recovering a slightly incorrect Groestlcoin mnemonic phrase (AKA backup or seed). You can enter an existing BIP39 mnemonic and get derived addresses in various formats.
To find out if one of the suggested addresses is the right one, you can click on the suggested address to check the address' transaction history on a block explorer.

Features

Live Version (Not Recommended)

https://www.groestlcoin.org/recovery/

Download

https://github.com/Groestlcoin/mnemonic-recovery/archive/master.zip

Source

ALL NEW! – Vanity Search Vanity Address Generator

NOTE: NVidia GPU or any CPU only. AMD graphics cards will not work with this address generator.
VanitySearch is a command-line Segwit-capable vanity Groestlcoin address generator. Add unique flair when you tell people to send Groestlcoin. Alternatively, VanitySearch can be used to generate random addresses offline.
If you're tired of the random, cryptic addresses generated by regular groestlcoin clients, then VanitySearch is the right choice for you to create a more personalized address.
VanitySearch is a groestlcoin address prefix finder. If you want to generate safe private keys, use the -s option to enter your passphrase which will be used for generating a base key as for BIP38 standard (VanitySearch.exe -s "My PassPhrase" FXPref). You can also use VanitySearch.exe -ps "My PassPhrase" which will add a crypto secure seed to your passphrase.
VanitySearch may not compute a good grid size for your GPU, so try different values using -g option in order to get the best performances. If you want to use GPUs and CPUs together, you may have best performances by keeping one CPU core for handling GPU(s)/CPU exchanges (use -t option to set the number of CPU threads).

Features

Usage

https://github.com/Groestlcoin/VanitySearch#usage

Download

Source

ALL NEW! – Groestlcoin EasyVanity 2020

Groestlcoin EasyVanity 2020 is a windows app built from the ground-up and makes it easier than ever before to create your very own bespoke bech32 address(es) when whilst not connected to the internet.
If you're tired of the random, cryptic bech32 addresses generated by regular Groestlcoin clients, then Groestlcoin EasyVanity2020 is the right choice for you to create a more personalised bech32 address. This 2020 version uses the new VanitySearch to generate not only legacy addresses (F prefix) but also Bech32 addresses (grs1 prefix).

Features

Download

Source

Remastered! – Groestlcoin WPF Desktop Wallet (v2.19.0.18)

Groestlcoin WPF is an alternative full node client with optional lightweight 'thin-client' mode based on WPF. Windows Presentation Foundation (WPF) is one of Microsoft's latest approaches to a GUI framework, used with the .NET framework. Its main advantages over the original Groestlcoin client include support for exporting blockchain.dat and including a lite wallet mode.
This wallet was previously deprecated but has been brought back to life with modern standards.

Features

Remastered Improvements

Download

Source

ALL NEW! – BIP39 Key Tool

Groestlcoin BIP39 Key Tool is a GUI interface for generating Groestlcoin public and private keys. It is a standalone tool which can be used offline.

Features

Download

Windows
Linux :
 pip3 install -r requirements.txt python3 bip39\_gui.py 

Source

ALL NEW! – Electrum Personal Server

Groestlcoin Electrum Personal Server aims to make using Electrum Groestlcoin wallet more secure and more private. It makes it easy to connect your Electrum-GRS wallet to your own full node.
It is an implementation of the Electrum-grs server protocol which fulfils the specific need of using the Electrum-grs wallet backed by a full node, but without the heavyweight server backend, for a single user. It allows the user to benefit from all Groestlcoin Core's resource-saving features like pruning, blocks only and disabled txindex. All Electrum-GRS's feature-richness like hardware wallet integration, multi-signature wallets, offline signing, seed recovery phrases, coin control and so on can still be used, but connected only to the user's own full node.
Full node wallets are important in Groestlcoin because they are a big part of what makes the system be trust-less. No longer do people have to trust a financial institution like a bank or PayPal, they can run software on their own computers. If Groestlcoin is digital gold, then a full node wallet is your own personal goldsmith who checks for you that received payments are genuine.
Full node wallets are also important for privacy. Using Electrum-GRS under default configuration requires it to send (hashes of) all your Groestlcoin addresses to some server. That server can then easily spy on your transactions. Full node wallets like Groestlcoin Electrum Personal Server would download the entire blockchain and scan it for the user's own addresses, and therefore don't reveal to anyone else which Groestlcoin addresses they are interested in.
Groestlcoin Electrum Personal Server can also broadcast transactions through Tor which improves privacy by resisting traffic analysis for broadcasted transactions which can link the IP address of the user to the transaction. If enabled this would happen transparently whenever the user simply clicks "Send" on a transaction in Electrum-grs wallet.
Note: Currently Groestlcoin Electrum Personal Server can only accept one connection at a time.

Features

Download

Windows
Linux / OSX (Instructions)

Source

UPDATED – Android Wallet 7.38.1 - Main Net + Test Net

The app allows you to send and receive Groestlcoin on your device using QR codes and URI links.
When using this app, please back up your wallet and email them to yourself! This will save your wallet in a password protected file. Then your coins can be retrieved even if you lose your phone.

Changes

Download

Main Net
Main Net (FDroid)
Test Net

Source

UPDATED – Groestlcoin Sentinel 3.5.06 (Android)

Groestlcoin Sentinel is a great solution for anyone who wants the convenience and utility of a hot wallet for receiving payments directly into their cold storage (or hardware wallets).
Sentinel accepts XPUB's, YPUB'S, ZPUB's and individual Groestlcoin address. Once added you will be able to view balances, view transactions, and (in the case of XPUB's, YPUB's and ZPUB's) deterministically generate addresses for that wallet.
Groestlcoin Sentinel is a fork of Groestlcoin Samourai Wallet with all spending and transaction building code removed.

Changes

Download

Source

UPDATED – P2Pool Test Net

Changes

Download

Pre-Hosted Testnet P2Pool is available via http://testp2pool.groestlcoin.org:21330/static/

Source

submitted by Yokomoko_Saleen to groestlcoin [link] [comments]

BTC Node. Need help with Ubuntu and BTC core program. To the Linux experts here in reddit.

The good thing of loosing a post, is that you have to retype everything and this means that you are able to shorten the post.
So. TLDR, I have 2 hdd, 80gb and 320, the second one has only, all the Blockchain info, from another already running node. I am not able to tell BTC Core program that the files are already there so he does not need to download 300gb. After hours of Google and linux forums, I am stuck in this issue. Every time I type "bitcoin-qt" on my terminal, it shows as a first download. Any help will be appreciate.

Full story.
English is not my first language, and this is being typed for second time (please have mercy on my grammar or misspelling mistakes), because I posted the question on linux subreddit nobody give a f..... so I decided to bring it here, posted a short post with the link and the automatic bot deleted because the of the link. I erased both the linux and the bitcoin post, and made a third one new, here, with plain text, copy pasting the info from the linux post. Never appeared on the "new" section of this sub. So hours of typing lost, and here we are.
Old Notebook. 80gb drive, and noob to Linux. Although I have some pc and logic knowledge, installed MINT due to a recommendation from a Bitcoin community, but since I have a friend with an already running node, with Ubuntu switched to this one, just to have the same system.
Once Ubuntu installed, on the 80gb and pc running, I copy and pasted the whole bitcoin folder from my friends pc to my 320 gb. Up to here all was good. But here is the problem

My friend, who does not understand nothing about linux, is owner of a company and has an IT guy who made everything for him, but would not be willing to help me a lot, (just to be good with his boss but right now it is not reachable for me), but when we where on my pc he told me that Linux is very sensitive to ports, in other words, a small usb change, will do a program to loose the path for the files. SO, instead of using the 320gb disk on USB i installed on this notebook second Hdd bay (its an old high end laptop with 2 sata connectors), he was able to set the program and everything went well for a couple of hours, Bitcoin Core program started synchronizing, downloading very little info.

I needed to turn of the pc to move it, so closed the program (waited until bitcoin core program told me was safe to) and turn it off, then turn it on again, and the problem was there, bitcoin core program started trying to download the whole blockchain in the spare 2gb of the 320 gb disk.
So what it seemed to happen is that even when the disk is installed on a sata bay from the motherboard, as I did not installed ubunutu with this disk connected it's route (adress?) is dinamyc and that is why BTC Core Program lost the files and does not recognize it.
After hours of google, linux forums and "askubuntu" i was able to, mount the 320gb disk, first editing the fstab ( i followed the guide in "askubuntu.com/questions/125257/how-do-i-add-an-additional-hard-drive") by the way. Trying to use VIM editor was a pain, it is REALLY difficult to type something there, and save it without pressing a wrong key. I had to cancel and start over at least a dozen times (plus reading several guides), but still was not able to mount the disk (Actually after following the steps, the hdd (320) disappeared from the GUI). went back, erased, and the did the NANO steps, and I THINK that now the hard drive it is fixed (before, any change,when restarting the second hdd took some time to appear, now it seems that is mounted and to a fixed adress). Well, after mounting the hdd, I tryed to call the bitcoin-qt and the initial download page appear and again tries to download from the initial block. I searched over hours "file association in ubuntu", "program files path" etc etc and the only thing I found is how to set up the desired software to open a file.

For you to understand my mess, when I did the "user:user" thing, I did not understand completely what I was doing, (yes I had to be in sudo) BUT i think I managed to did the correct thing as both hdd are shown in the Ubuntu GUI.

Some additional data is
Both hard drives are formated in Ext4
I have (I think that) a fstab.bak before any changes

I knwo that linux users sometimes ask for details on the system, just tell me the commands and i can run them to stick any info needed.

Thanks for the help in advance.
submitted by Cabe72000 to Bitcoin [link] [comments]

(Updated) [Staking] Reddcoin Core client GUI wallet on a Raspberry Pi Model 3B

Intro

This thread is an update to my first Reddcoin staking tutorial that was written 7 months ago.
 
The reason for the update
My Reddcoin Core software crashed and became unusable. My Raspberry Pi 3B would lag and freeze, I couldn't stake anymore.
 
Instead of just redoing everything the same way, I wanted to see if I could improve on 3 points:
 
The updates
 
If you would like to tip me
Writing a tutorial like this takes time and effort; tips are appreciated. My Reddcoin address: RqvdnNX5MTam855Y2Vudv7yVgtXdcYaQAW.
     

Overview

 

Steps

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
     

Video

https://www.youtube.com/watch?v=Snr5e8bzftI
This video shows how long it takes to start Reddcoin Core.   TL;DR:
     

Extra

Backup
Backup your wallet to prevent losing the RDDs in your wallet! There are two methods to backup, do both. Make new backups if you create a new receiving address!
 
 
   
Boot with only 1 USB drive plugged in:
Make sure only the USB drive (with the swap partition and data partition) is plugged in when you boot up your Raspberry Pi. This to make sure the swap partition (/dev/sda1) is recognized correctly.   If you boot up with multiple USB drives, Lubuntu might see the USB drive with the swap partition as the second drive (instead of the first drive), and ignore the 2 GB swap partition. If this happens, starting Reddcoin can render the Raspberry Pi unresponsive.
   
Connection issues If you have issues syncing the blockchain because you have 0 network connections, please follow the instructions in this thread.
   
Start Reddcoin Core easier
Run a shell script (.sh file), so you can start Reddcoin just by double clicking on an icon on your Desktop.
   
Minimization options
Adjust minimization options, so you can safely press on the X button (the close/exit button on the upper right corner).
   
RealVNC VNC Viewer (client) and VNC Connect (server): To remote connect to the Raspberry Pi, I use VNC Viewer ad VNC Connect from RealVNC.
 
   
Chromium as browser: The updates break Firefox, the browser crashes when you try to run it. Install another browser, Chromium, to solve this issue.
   
Updates / Upgrades
If Software Updater shows up and tells you that there is updated software available, do not install the updates using Software Updater. Use LXTerminal to update Lubuntu.  
     

Credits:

   
Credits in previous tutorial:
submitted by Yavuz_Selim to reddCoin [link] [comments]

We need to figure out how to help newbies store and use their bitcoin safely

This is how I do it:
BACKUP:
master private seed words on paper , saved securely.
REGULAR USE:
Preparation: Created a USB bootable linux , install electrum on it , disabled its internet/networking (IMPORTANT!), put private keys in electrum wallet, copy public keys from electrum wallet to usb drive. Boot to regular OS (windows/mac) , open electrum, create watching only wallet with public keys saved on USB.
Using: Create transaction in electrum on regular OS -> save transaction to file on USB . Boot into usb linux -> load transaction from USB in electrum -> sign it, save to USB -> boot to regular OS -> load singed transaction from USB in electrum -> Broadcast!

Add encryption and passwords to the above, and I think its a fairly bullet proof method of storing bitcoins. The private keys are never exposed to any network. I struggled at the part of disabling internet, but it worked out in the end.
Obviously, this process is hard for the average joe. He will just keep his coins on some web wallet, defeating the point of bitcoin, and set themselves up to lose their btc down the road.
There really need to be a method to make this easier. Maybe a modified version of ubuntu, with no networking, encryption and electrum preinstalled ? There is trezor , but I don't have knowledge there. Comments?
submitted by Automataton to Bitcoin [link] [comments]

Getting frustrated with Ubuntu. Are my experiences the norm for a Linux user?

Let me start off by saying that I'm not a total newb, but still pretty green. I like to believe I'm capable with computers, and know enough to figure out most issues. I also have a pretty solid general understanding of how they function. Been a Windows user most of my life, but decided to make the switch to Linux a few years back.
My experiences thus far are making me reconsider the switch, despite the fact that I've really become opposed to using Windows. I'm curious if I should expect more of the same indefinitely, or if my experiences up to this point are unusual, and I should expect to reach a point where I can just use the OS, instead of spend hours trying to perform every task.
It all started when I downloaded Ubuntu about three years ago. I easily got it installed as a dual boot on a Windows machine. Had to start by allocating disk space in Windows for the new Linux install, prepared a live usb, went through the install, cake. Then I started trying to do stuff, like use a printer. Well HP doesn't make a driver for Linux and, probably, 2-4 hours of research led to me still not having a working printer. I found a driver, but the process to get it installed did not work as it was supposed to. I forget the specifics, but I followed a tutorial to the T, but ran into unforeseen installation issues, and never could figure out how to get the process complete.
After that I started running into issues with the FireFox browser. I've alwasy used FF on Windows with no issues. On Ubuntu it ran slower than dial-up from the mid-90's. Again, 2-4 hours worth of research and several changes to things like FF settings, disabling add-ons, etc., and I still had no fix.
Still I wasn't deterred. Then the dual boot broke. I tried boot repair. No dice. Tried for several hours to get it working. Asked about it on forums, sent in results of boot repair (where I forget) only to get no response, and finally I threw in the towel.
I also struggled to get Bitcoin Armory working, with some very frustrating success, but I didn't count that against Linux, since it was very new software, and I wasn't surprised it was buggy.
Fast forward to today. I've been using Windows for a couple years, with few attempts made to use Linux, except for trying to retrieve a very small amount of BTC from Armory, which consumed about three weekends of my life to finally achieve.
Now I've decided to give it another go. I downloaded UbuntuStudio b/c I'd like to use some of the music production software that comes with it.
Following some tutorials online, I tried to connect my midi keyboard to the computer using QJackCtl. I couldn't remember the issue that I ran into when starting to type this up, so I tried to repeat the process, only to have the program crash during start up, three times. The computer had literally just restarted 20 minutes ago, so I doubt a reboot would work, but maybe. It's almost funny at this point. I'm really disappointed that I can't get the audio software that came with the distro working "fresh out of the box." Maybe with a few hours, or weekends, worth of research?
I've also been getting a system error message every time I login. I posted a query on the Ubuntu forums. That issue has yet to be sorted out.
I hesitate to include this next part, because it involves software that is really still in it's early stages, and I'm trying to be realistic in taking the perspective that any problems I encounter are with the new software, not Ubuntu, but the fact that I had zero problems getting the same stuff to work in Windows just adds to my frustration with Ubuntu.
Everything I'm about to describe is involved with installing monero mining and wallet software. The exception is the AMD drivers needed for the GPU I'm using to mine. Those I expected to work without issue. I followed the directions for installing the AMD drivers for Ubuntu on the AMD website, and the program would not work. After, you guessed it, 2-4 hours of research, I finally, almost by accident, installed an older version of the driver software. Boom, it worked. WTF man?! When I installed the Windows version it took 2 minutes.
Moving on, I tried getting the xmr-stak mining software working. This took me several hours, spread over several days to sort out. Same with the monero-gui wallet, which actually I've only got half-way working. In fact, I've tried installing the monero-gui by two different ways. In the process I've inadvertently got the monerod daemon running, but not the gui. Actually, the monerod daemon starts with the computer and I haven't even started trying to figure out how to turn that off, since what's the point of having it run if I can't use the gui?
In Windows I had all of this up and running in a couple of hours. And in saying that I'm prepared for the "if you like Windows so much then use that!" or "you're just too thick to figure it out!", but I don't like Windows, and I don't think it's a matter of not figuring it out. It seems to me that the reason I've spent dozens of hours just trying to get things to work in Linux is that nearly every time I've tried to do something, there is inevatably some error along the way where following the directions isn't good enough, and sorting out the issue is a feat in and of itself.
I just want to know if this is unusual, or if this is how it's going to go forever if I keep using Linux. Is my experience typical?
TL;DR: I've had a litany of issues and spent countless hours trying to fix them using Linux. Is this rare, and I've just had an unusual experience, or actually pretty common, and I should just accept it as the cost of using an open source OS?
submitted by rtfioeti to Ubuntu [link] [comments]

[META] New to PC Building? - September 2018 Edition

Intro

You've heard from all your gaming friends/family or co-workers that custom PCs are the way to go. Or maybe you've been fed up with your HP, Dell, Acer, Gateway, Lenovo, etc. pre-builts or Macs and want some more quality and value in your next PC purchase. Or maybe you haven't built a PC in a long time and want to get back into the game. Well, here's a good place to start.

Instructions

  1. Make a budget for your PC (e.g., $800, $1000, $1250, $1500, etc.).
  2. Decide what you will use your PC for.
    • For gaming, decide what games and at what resolution and FPS you want to play at.
    • For productivity, decide what software you'll need and find the recommended specs to use those apps.
    • For a bit of both, your PC build should be built on the HIGHEST specs recommended for your applications (e.g., if you only play FortNite and need CPU power for CFD simulations, use specs recommended for CFD).
    Here are some rough estimates for builds with entirely NEW parts:
    1080p 60FPS ultra-settings modern AAA gaming: ~$1,200
    1440p 60FPS high/ultra-settings modern AAA gaming: ~$1,600
    1080p 144FPS ultra-settings modern AAA gaming: $2,000
    4K 50FPS medium/high-settings modern AAA gaming: > $2,400
    It's noted that some compromises (e.g., lower settings and/or resolution) can be made to achieve the same or slightly lower gaming experience within ±15% of the above prices. It's also noted that you can still get higher FPS on older or used PCs by lowering settings and/or resolution AND/OR buying new/used parts to upgrade your system. Make a new topic about it if you're interested.
    Also note that AAA gaming is different from e-sport games like CSGO, DOTA2, FortNite, HOTS, LoL, Overwatch, R6S, etc. Those games have lower requirements and can make do with smaller budgets.
  3. Revise your budget AND/OR resolution and FPS until both are compatible. Compare this to the recommended requirements of the most demanding game on your list. For older games, you might be able to lower your budget. For others, you might have to increase your budget.
    It helps to watch gaming benchmarks on Youtube. A good example of what you're looking for is something like this (https://www.youtube.com/watch?v=9eLxSOoSdjY). Take note of the resolution, settings, FPS, and the specs in the video title/description; ask yourself if the better gaming experience is worth increasing your budget OR if you're okay with lower settings and lowering your budget. Note that you won't be able to see FPS higher than 60FPS for Youtube videos; something like this would have to be seen in-person at a computer shop.
  4. Make a build on https://ca.pcpartpicker.com/. If you still have no idea how to put together parts, start here (http://www.logicalincrements.com/) to get an understanding of PC part tiers. If you want more info about part explanations and brief buying tips, see the next section below.
  5. Click on the Reddit logo button next to Markup, copy and paste the generated text (in markup mode if using new Reddit), and share your build for review!
  6. Consider which retailer to buy your parts from. Here's a table comparing different retailers: https://docs.google.com/spreadsheets/d/1L8uijxuoJH4mjKCjwkJbCrKprCiU8CtM15mvOXxzV1s/edit?usp=sharing
  7. Buy your parts! Use PCPP above to send you e-mail alerts on price drops or subscribe to /bapcsalescanada for deals.
    You can get parts from the following PC retailers in alphabetical order:
  8. After procuring your parts, it's time to build. Use a good Youtube tutorial like this (https://www.youtube.com/watch?v=IhX0fOUYd8Q) that teach BAPC fundamentals, but always refer to your product manuals or other Youtube tutorials for part-specific instructions like CPU mounting, radiator mounting, CMOS resetting, etc. If it everything still seems overwhelming, you can always pay a computer shop or a friend/family member to build it for you.
    It might also be smart to look up some first-time building mistakes to avoid:
  9. Share your experience with us.
  10. If you have any other questions, use the search bar first. If it's not there, make a topic.

BAPC News (Last Updated - 2018/09/20)

CPU

https://www.tomshardware.com/news/intel-9000-series-cpu-faq,37743.html
Intel 9000 CPUs (Coffee Lake Refresh) will be coming out in Q4. With the exception of i9 (8-core, 12 threads) flagship CPUs, the i3, i5, and i7 lineups are almost identical to their Intel 8000 (Coffee Lake) series, but slightly clocked faster. If you are wondering if you should upgrade to the newer CPU on the same tier (e.g., i5-8400 to i5-9400), I don't recommend that you do as you will only see marginal performance increases.

Mobo

https://www.anandtech.com/show/13135/more-details-on-intels-z390-chipset-exposed
Z370s will now be phased out for Z390s boards, which will natively support Intel 9000 CPUs (preferably i5-9600K, i7-9700K, and i9-9900K).

GPU

https://www.youtube.com/watch?v=WDrpsv0QIR0
RTX 2080 and 2080 Ti benchmarks are out; they provide ~10 and ~20 frames better than the 1080 Ti and also feature ray tracing (superior lighting and shadow effects) which is featured in only ~30 games so far (i.e., not supported a lot); effectively, they provide +25% more performance for +70% increased cost. My recommendation is NOT to buy them unless you need it for work or have lots of disposable income. GTX 1000 Pascal series are still relevant in today's gaming specs.

Part Explanations

CPU

The calculator part. More GHz is analogous to fast fingers number crunching in the calculator. More cores is analogous to having more calculators. More threads is analogous to having more filing clerks piling more work for the calculator to do. Microarchitectures (core design) is analogous to how the internal circuit inside the calculator is designed (e.g., AMD FX series are slower than Intel equivalents even with higher OC'd GHz speeds because the core design is subpar). All three are important in determining CPU speed.
In general, higher GHz is more important for gaming now whereas # cores and threads are more important for multitasking like streaming, video editing, and advanced scientific/engineering computations. Core designs from both AMD and Intel in their most recent products are very good now, but something to keep in mind.

Overclocking

The basic concept of overclocking (OCing) is to feed your CPU more power through voltage and hoping it does calculations faster. Whether your parts are good overclockers depends on the manufacturing process of your specific part and slight variations in materials and manufacturing process will result in different overclocking capability ("silicon lottery"). The downside to this is that you can void your warranties because doing this will produce excess heat that will decrease the lifespan of your parts AND that there is a trial-and-error process to finding OC settings that are stable. Unstable OC settings result in computer freezes or random shut-offs from excess heat. OCing will give you extra performance often for free or by investing in a CPU cooler to control your temperatures so that the excess heat will not decrease your parts' lifespans as much. If you don't know how to OC, don't do it.

Current Products

Intel CPUs have higher GHz than AMD CPUs, which make them better for gaming purposes. However, AMD Ryzen CPUs have more cores and threads than their Intel equivalents. The new parts are AMD Ryzen 3, 5, or 7 2000 series or Intel i3, i5, or i7 8000 series (Coffee Lake). Everything else is outdated.
If you want to overclock on an AMD system, know that you can get some moderate OC on a B350/B450 with all CPUs. X370/X470 mobos usually come with better VRMs meant for OCing 2600X, 2700, and 2700X. If you don't know how to OC, know that the -X AMD CPUs have the ability to OC themselves automatically without manually settings. For Intel systems, you cannot OC unless the CPU is an unlocked -K chip (e.g., i3-8350K, i5-8600K, i7-8700K, etc.) AND the motherboard is a Z370 mobo. In general, it is not worth getting a Z370 mobo UNLESS you are getting an i5-8600K and i7-8700K.

CPU and Mobo Compatibility

Note about Ryzen 2000 CPUs on B350 mobos: yes, you CAN pair them up since they use the same socket. You might get an error message on PCPP that says that they might not be compatible. Call the retailer and ask if the mobo you're planning on buying has a "Ryzen 2000 Series Ready" sticker on the box. This SHOULD NOT be a problem with any mobos manufactured after February 2018.
Note about Intel 9000 CPUs on B360 / Z370 mobos: same as above with Ryzen 2000 CPUs on B350 or X370 boards.

CPU Cooler (Air / Liquid)

Air or liquid cooling for your CPU. This is mostly optional unless heavy OCing on AMD Ryzen CPUs and/or on Intel -K and i7-8700 CPUs.
For more information about air and liquid cooling comparisons, see here:

Motherboard/mobo

Part that lets all the parts talk to each other. Comes in different sizes from small to big: mITX, mATX, ATX, and eATX. For most people, mATX is cost-effective and does the job perfectly. If you need more features like extra USB slots, go for an ATX. mITX is for those who want a really small form factor and are willing to pay a premium for it. eATX mobos are like ATX mobos except that they have more features and are bigger - meant for super PC enthusiasts who need the features.
If you are NOT OCing, pick whatever is cheap and meets your specs. I recommend ASUS or MSI because they have RMA centres in Canada in case it breaks whereas other parts are outside of Canada like in the US. If you are OCing, then you need to look at the quality of the VRMs because those will greatly influence the stability and lifespan of your parts.

Memory/RAM

Part that keeps Windows and your software active. Currently runs on the DDR4 platform for new builds. Go for dual channel whenever possible. Here's a breakdown of how much RAM you need:
AMD Ryzen CPUs get extra FPS for faster RAM speeds (ideally 3200MHz) in gaming when paired with powerful video cards like the GTX 1070. Intel Coffee Lake CPUs use up a max of 2667MHz for B360 mobos. Higher end Z370 mobos can support 4000 - 4333MHz RAM depending on the mobo, so make sure you shop carefully!
It's noted that RAM prices are highly inflated because of the smartphone industry and possibly artificial supply shortages. For more information: https://www.extremetech.com/computing/263031-ram-prices-roof-stuck-way

Storage

Part that store your files in the form of SSDs and HDDs.

Solid State Drives (SSDs)

SSDs are incredibly quick, but are expensive per TB; they are good for booting up Windows and for reducing loading times for gaming. For an old OEM pre-built, upgrading the PC with an SSD is the single greatest speed booster you can do to your system. For most people, you want to make sure the SSD you get is NOT DRAM-less as these SSDs do not last as long as their DRAM counterparts (https://www.youtube.com/watch?v=ybIXsrLCgdM). It is also noted that the bigger the capacity of the SSD, the faster they are. SSDs come in four forms:
The 2.5" SATA form is cheaper, but it is the old format with speeds up to 550MB/s. M.2 SATA SSDs have the same transfer speeds as 2.5" SATA SSDs since they use the SATA interface, but connect directly to the mobo without a cable. It's better for cable management to get an M.2 SATA SSD over a 2.5" SATA III SSD. M.2 PCI-e SSDs are the newest SSD format and transfer up to 4GB/s depending on the PCI-e lanes they use (e.g., 1x, 2x, 4x, etc.). They're great for moving large files (e.g., 4K video production). For more info about U.2 drives, see this post (https://www.reddit.com/bapccanada/comments/8jxfqs/meta_new_to_pc_building_may_2018_edition/dzqj5ks/). Currently more common for enterprise builds, but could see some usage in consumer builds.

Hard Disk Drives (HDDs)

HDDs are slow with transfer speeds of ~100MB/s, but are cheap per TB compared to SSDs. We are now at SATA III speeds, which have a max theoretical transfer rate of 600MB/s. They also come in 5400RPM and 7200RPM forms. 5400RPM uses slightly less power and are cheaper, but aren't as fast at dealing with a large number of small files as 7200RPM HDDs. When dealing with a small number of large files, they have roughly equivalent performance. It is noted that even a 10,000RPM HDD will still be slower than an average 2.5" SATA III SSD.

Others

SSHDs are hybrids of SSDs and HDDs. Although they seem like a good combination, it's much better in all cases to get a dedicated SSD and a dedicated HDD instead. This is because the $/speed better for SSDs and the $/TB is better for HDDs. The same can be said for Intel Optane. They both have their uses, but for most users, aren't worth it.

Overall

I recommend a 2.5" or M.2 SATA ≥ 250GB DRAM SSD and a 1TB or 2TB 7200RPM HDD configuration for most users for a balance of speed and storage capacity.

Video Card/GPU

Part that runs complex calculations in games and outputs to your monitor and is usually the most expensive part of the budget. The GPU you pick is dictated by the gaming resolution and FPS you want to play at.
In general, all video cards of the same product name have almost the same non-OC'd performance (e.g., Asus Dual-GTX1060-06G has the same performance as the EVGA 06G-P4-6163-KR SC GAMING). The different sizes and # fans DO affect GPU OCing capability, however. The most important thing here is to get an open-air video card, NOT a blower video card (https://www.youtube.com/watch?v=0domMRFG1Rw). The blower card is meant for upgrading pre-builts where case airflow is limited.
For cost-performance, go for the NVIDIA GTX cards because of the cryptomining industry that has inflated AMD RX cards. Bitcoin has taken a -20% hit since January's $10,000+ as of recently, but the cryptomining industry is still ongoing. Luckily, this means prices have nearly corrected itself to original MSRP in 2016.
In general:
Note that if your monitor has FreeSync technology, get an AMD card. If your monitor has G-Sync, get a NVIDIA card. Both technologies allow for smooth FPS gameplay. If you don't have either, it doesn't really matter which brand you get.
For AMD RX cards, visit https://www.pcworld.com/article/3197885/components-graphics/every-amd-radeon-rx-graphics-card-you-can-buy-for-pc-gaming.html

New NVIDIA GeForce RTX Series

New NVIDIA 2000 RTX series have been recently announced and will be carried in stores in Q3 and Q4. Until all of the products have been fully vetted and reviewed, we cannot recommend those yet as I cannot say if they are worth what NVIDIA has marketed them as. But they will be faster than their previous equivalents and will require more wattage to use. The 2070, 2080, and 2080 Ti will feature ray tracing, which is a new feature seen in modern CG movies that greatly enhances lighting and shadow effects. At this time, < 30 games will use ray tracing (https://www.pcgamer.com/21-games-will-support-nvidias-real-time-ray-tracing-here-are-demos-of-tomb-raider-and-control/). It's also noted that the 2080 Ti is the Titan XP equivalent, which is why it's so expensive. (https://www.youtube.com/watch?v=Irs8jyEmmPQ) The community's general recommendation is NOT to pre-order them until we see some reviews and benchmarks from reviewers first.
Looks like a couple of benchmarks are out. While keeping other parts equal the following results were obtained(https://videocardz.com/77983/nvidia-geforce-rtx-2080-ti-and-rtx-2080-official-performance-unveiled). So the 2080 and 2080 Ti are better than last generation's 1080 Ti by ~10 and ~20 frames respectively.

Case

Part that houses your parts and protects them from its environment. Should often be the last part you choose because the selection is big enough to be compatible with any build you choose as long as the case is equal to or bigger than the mobo form factor.
Things to consider: aesthetics, case airflow, cable management, material, cooling options (radiators or # of fan spaces), # fans included, # drive bays, toolless installation, power supply shroud, GPU clearance length, window if applicable (e.g., acrylic, tempered glass), etc.
It is recommended to watch or read case reviews on Youtube to get an idea of a case's performance in your setup.

Power Supply/PSU

Part that runs your PC from the wall socket. Never go with an non-reputable/cheap brand out on these parts as low-quality parts could damage your other parts. Recommended branded PSUs are Corsair, EVGA, Seasonic, and Thermaltake, generally. For a tier list, see here (https://linustechtips.com/main/topic/631048-psu-tier-list-updated/).

Wattage

Wattage depends on the video card chosen, if you plan to OC, and/or if you plan to upgrade to a more powerful PSU in the future. Here's a rule of thumb for non-OC wattages that meet NVIDIA's recommendations:
There are also PSU wattage calculators that you can use to estimate your wattage. How much wattage you used is based on your PC parts, how much OCing you're doing, your peripherals (e.g., gaming mouse and keyboard), and how long you plan to leave your computer running, etc. It is noted that these calculators use conservative estimates, so use the outputted wattage as a baseline of how much you need. Here are the calculators (thanks, VitaminDeity).
Pick ONE calculator to use and use the recommended wattage, NOT recommended product, as a baseline of what wattage you need for your build. Note that Cooler Master and Seasonic use the exact calculator as Outervision. For more details about wattage, here are some reference videos:

Modularity

You might also see some info about modularity (non-modular, semi-modular, or fully-modular). These describe if the cables will come connected to the PSU or can be separated of your own choosing. Non-modular PSUs have ALL of the cable connections attached to the PSU with no option to remove unneeded cables. Semi-modular PSUs have separate cables for HDDs/SSDs and PCI-e connectors, but will have CPU and mobo cables attached. Modular PSUs have all of their cables separate from each other, allowing you to fully control over cable management. It is noted that with decent cooling and airflow in your case, cable management has little effect on your temperatures (https://www.youtube.com/watch?v=YDCMMf-_ASE).

80+ Efficiency Ratings

As for ratings (80+, 80+ bronze, 80+ gold, 80+ platinum), these are the efficiencies of your PSU. Please see here for more information. If you look purely on electricity costs, the 80+ gold PSUs will be more expensive than 80+ bronze PSUs for the average Canadian user until a breakeven point of 6 years (assuming 8 hours/day usage), but often the better performance, longer warranty periods, durable build quality, and extra features like fanless cooling is worth the extra premium. In general, the rule of thumb is 80+ bronze for entry-level office PCs and 80+ gold for mid-tier or higher gaming/workstation builds. If the price difference between a 80+ bronze PSU and 80+ gold PSU is < 20%, get the 80+ gold PSU!

Warranties

Warranties should also be looked at when shopping for PSUs. In general, longer warranties also have better PSU build quality. In general, for 80+ bronze and gold PSU units from reputable brands:
Any discrepancies are based on varied wattages (i.e., higher wattages have longer warranties) or updated warranty periods. Please refer to the specific product's warranty page for the correct information. For EVGA PSUs, see here (https://www.evga.com/support/warranty/power-supplies/). For Seasonic PSUs, see here (https://seasonic.com/support#period). For Corsair PSUs, see here (https://www.corsair.com/ca/en/warranty).
For all other PSU inquiries, look up the following review sites for the PSUs you're interested in buying:
These guys are engineering experts who take apart PSUs, analyze the quality of each product, and provide an evaluation of the product. Another great website is http://www.orionpsudb.com/, which shows which PSUs are manufactured by different OEMs.

Operating System (OS)

Windows 10

The most common OS. You can download the ISO here (https://www.microsoft.com/en-ca/software-download/windows10). For instructions on how to install the ISO from a USB drive, see here (https://docs.microsoft.com/en-us/windows-hardware/manufacture/desktop/install-windows-from-a-usb-flash-drive) or watch a video here (https://www.youtube.com/watch?v=gLfnuE1unS8). For most users, go with the 64-bit version.
If you purchase a Windows 10 retail key (i.e., you buy it from a retailer or from Microsoft directly), keep in mind that you are able to transfer it between builds. So if you're building another PC for the 2nd, 3rd, etc. time, you can reuse the key for those builds PROVIDED that you deactivate your key before installing it on your new PC. These keys are ~$120.
However, if you have an OEM key (e.g., pre-builts), that key is tied specifically to your mobo. If you ever decide to upgrade your mobo on that pre-built PC, you might have to buy a new Windows 10 license. For more information, see this post (https://www.techadvisor.co.uk/feature/windows/windows-10-oem-or-retail-3665849/). The cheaper Windows 10 keys you can find on Kinguin are OEM keys; activating and deactivating these keys may require phoning an automated Microsoft activation line. Most of these keys are legitimate and cost ~$35, although Microsoft does not intend for home users to obtain this version of it. Buyer beware.
The last type of key is a volume licensing key. They are licensed in large volumes to corporate or commercial usage. You can find lots of these keys on eBay for ~$10, but if the IT department who manages these keys audit who is using these keys or if the number of activations have exceeded the number allotted on that one key, Microsoft could block that key and invalidate your license. Buyer beware.
For more information on differentiating between all three types of keys, see this page (https://www.tenforums.com/tutorials/49586-determine-if-windows-license-type-oem-retail-volume.html).
If money is tight, you can get Windows 10 from Microsoft and use a trial version of it indefinitely. However, there will be a watermark in the bottom-right of your screen until you activate your Windows key.

MacOS

If you're interested in using MacOS, look into Hackintosh builds. This will allow you to run MacOS to run on PC parts, saving you lots of money. These builds are pretty picky about part compatibility, so you might run into some headaches trying to go through with this. For more information, see the following links:

Linux

If you're interested in a free open-source OS, see the following links:
For more information, go to /linux, /linuxquestions, and /linux4noobs.

Peripherals

Monitors

Keyboards and Mice

Overall

Please note that the cost-performance builds will change daily because PC part prices change often! Some builds will have excellent cost-performance one day and then have terrible cost-performance the next. If you want to optimize cost-performance, it is your responsibility to do this if you go down this route!
Also, DO NOT PM me with PC build requests! It is in your best interests to make your own topic so you can get multiple suggestions and input from the community rather than just my own. Thanks again.

Sample Builds

Here are some sample builds that are reliable, but may not be cost-optimized builds. These builds were created on September 9, 2018; feel free to "edit this part list" and create your own builds.

Links

Helpful links to common problems below:

Contributors

Thanks to:

Housekeeping

2019/09/22
2019/09/18
Updates:
2019/09/09
Updates:
Sorry for the lack of updates. I recently got a new job where I work 12 hours/day for 7 days at a time out of the city. What little spare time I have is spent on grad school and the gym instead of gaming. So I've been pretty behind on the news and some might not be up-to-date as my standards would have been with less commitments. If I've made any mistakes, please understand it might take a while for me to correct them. Thank you!
submitted by BlackRiot to bapccanada [link] [comments]

Small form factor for home server and Bitcoin node

Before I start, let me emphasize on the fact that this request is something probably quite unusual for this sub and I apologize if it doesn't belong here. If that's the case, please let me know.

What will you be doing with this PC? Be as specific as possible, and include specific games or programs you will be using.
I'm looking for a small, quiet and affordable computer which will run 24/7 in my house. The aim is to make it a personal server and a Bitcoin node (not for mining, just a node).
A Bitcoin node should run on hardware with good endurance, stable internet connection, a large storage and that can run for a long period of time.

What is your maximum budget before rebates/shipping/taxes?
300€

When do you plan on building/buying the PC? Note: beyond a week or two from today means any build you receive will be out of date when you want to buy.
Anytime during this summer.

What, exactly, do you need included in the budget? (ToweOS/monitokeyboard/mouse/etc)
I'm not sure if it's the right place but here are my criteria:

Which country (and state/province) will you be purchasing the parts in? If you're in US, do you have access to a Microcenter location?
France

If reusing any parts (including monitor(s)/keyboard/mouse/etc), what parts will you be reusing? Brands and models are appreciated.
I will use this computer as as server so via SSH after the install. I already own some spare monitors and peripherals.

Will you be overclocking? If yes, are you interested in overclocking right away, or down the line? CPU and/or GPU?
No

Are there any specific features or items you want/need in the build? (ex: SSD, large amount of storage or a RAID setup, CUDA or OpenCL support, etc)
As said earlier, I need a large storage for the Bitcoin node. I'm thinking about a 2TB NAS HDD so it can last for a very long time. The NAS variant of HDD is probably the one which suits my needs the most as the disk will be very frequently accessed and will run 24/7.

Do you have any specific case preferences (Size like ITX/microATX/mid-towefull-tower, styles, colors, window or not, LED lighting, etc), or a particular color theme preference for the components?
Mini ATX if possible. I'd prefer a small form factor. The most important part of the case is its protectiveness, the rest is not important.

Do you need a copy of Windows included in the budget? If you do need one included, do you have a preference?
No, I will install a linux distro.

Extra info or particulars:

I found the Odroid H2 and Odroid HC2 which fit my needs perfectly but they are either sold out, unavailable or have insanely high customs fees. Also I checked Intel NUCs but I'm not sure it is what I need, especially for the price. A Raspberry Pi is not a good choice because of the storage capabilities (connected by USB 2.0) and limited RAM.
I considered building a machine myself but I'm not sure which components to use, and where to buy them. This is why I came here and this is something I'm still open to, if the price is not too high.
submitted by ImAFlyingPancake to buildapcforme [link] [comments]

[Staking] Reddcoin Core client GUI wallet on a Raspberry Pi Model 3B

This tutorial has been updated: https://www.reddit.com/reddCoin/comments/a0wn1v/updated_staking_reddcoin_core_client_gui_wallet/.
   

Intro

I want to stake Reddcoins on my Raspberry Pi, but there is no easy to install package for the Reddcoin Core client. I found some tutorials (mentioned at the bottom, under 'credits'), but I still struggled to get the result I wanted. It took some small adjustments, but I got the GUI Wallet of Reddcoin Core working on my Raspberry Pi Model 3B. See the steps below. :).
 
If you have any questions or comments, please post a comment in this thread, so others can also benefit from it.
 
If you would like to tip me: RqvdnNX5MTam855Y2Vudv7yVgtXdcYaQAW.
   
Even though Raspbian is the primary OS for the Raspberry Pi, it seems that it's not possible to build and compile the Reddcoin wallet software for Raspbian Stretch. However, I got the wallet compiled using Ubuntu MATE.
     

Overview

     

Steps

 
 
 
 
 
 
 
 
 
 
 
 
 
 
     

Extra

 
 
 
 
     

Credits:

 
Thank you all for sharing your knowledge!
submitted by Yavuz_Selim to reddCoin [link] [comments]

Step by step in staking Redd with Raspberry Pi 3

Before I start, I would like to pay complete credits to these two guys :)
https://www.reddcointalk.org/topic/2679/reddcoin-staking-via-ubuntu-mate-on-raspberry-pi-3-model-b-march-2018 (most of my steps, if not all, are from this link)
https://github.com/joroob/reddcoin/blob/mastedoc/build-arm.md
All the steps I am writing is ABSOLUTELY NECESSARY, please don't try to skip it because I did, and it doesn't work.
step 1: get a Raspberry Pi B https://www.raspberrypi.org/products/#buy-now-modal
step 2: make sure you get proper power supply 5v 2A - the Pi will mine, it will need sufficient power. Regular USB samsung charger will not work.
step 3: get proper micro SD card (SanDisk for example) 32Gb++
step 4: USB + Mouse keyboard
step 5: flash micro SD card with Ubuntu MATE
Download Ubuntu Mate image: https://ubuntu-mate.org/raspberry-pi/
Download Etcher: https://etcher.io
After finishing downloading, use Etcher to write/flash the image on micro SD card
After this, your SD card contains Ubuntu MATE OS.
step 6: Place SD Card into Raspberry Pi 3 and start it up. You should be able to see Ubuntu OS! Congrats!
step 7: Connect to wifi or internet cable (internet is better and faster)
step 8: OPTIONAL - turn off UI OS, so that things will work faster
Open XTerminal:
sudo systemctl disable lightdm.service (to turn UI off) 
in case you want to turn UI on again, run this:
sudo systemctl start lightdm.service (to turn UI on) 
step 9: install all dependencies
sudo apt-get update && sudo apt-get install git build-essential libqt4-dev libprotobuf-dev protobuf-compiler libtool autotools-dev autoconf libssl-dev libboost-all-dev wget pkg-config sudo add-apt-repository ppa:bitcoin/bitcoin sudo apt-get update sudo apt-get install db4.8 sudo apt-get install libminiupnpc-dev sudo apt-get install libqrencode-dev Reboot 
step 10: add additional RAM (sort of) in case the App need it, this is call "Create Swap file"
sudo fallocate -l 1G /swapfile sudo chmod 600 /swapfile sudo mkswap /swapfile sudo swapon /swapfile echo ‘/swapfile none swap sw 0 0’ | sudo tee -a /etc/fstab 
step 11: Build Berkeley Database
wget http://download.oracle.com/berkeley-db/db-4.8.30.NC.tar.gz tar xfvz db-4.8.30.NC.tar.gz cd db-4.8.30.NC cd build_unix ../dist/configure --enable-cxx make sudo make install 
step 11.5: Set BerkeleyDB path
export CPATH="/uslocal/BerkeleyDB.4.8/include" export LIBRARY_PATH="/uslocal/BerkeleyDB.4.8/lib" export LD_LIBRARY_PATH=/uslocal/BerkeleyDB.4.8/lib/ 
step 12: Build Reddcoin Wallet
---download source code ---- only source from joroob/reddcoin will work because some stweak was needed for ARM CPU
cd ~ git clone https://github.com/joroob/reddcoin.git 
---build reddcoin ----
cd reddcoin ./autogen.sh ./configure --with-gui=no --disable-tests cd src make sudo make install 
If you finish this, you are in a great position!!!
step 13: Create reddcoin configuration file
cd ~ mkdir .reddcoin && cd .reddcoin nano reddcoin.conf rpcuser=YOUR OWN USERNAME, YOU DONT NEED TO REMEMBER THIS, MAKE IT AS LONG AS YOU WANT rpcpassword=YOUR OWN PASS WORD, YOU DONT NEED TO REMEMBER THIS, MAKE IT AS LONG AS YOU WANT 
step 14: Use bootstrap
(At this point, you had a running reddcoin daemon, now you can start staking. But syncing the full chain takes long time.)
cd ~/.reddcoin wget https://github.com/reddcoin-project/reddcoin/releases/download/v2.0.1.2/bootstrap.dat.xz xz -d bootstrap.dat.xz 
step 15: start the reddcoin daemon service cd ~/reddcoin/src ./reddcoind -daemon
After this, you can test if the daemon is working, by perform this command: ./reddcoin-cli getblockcount
step 16: if your app is not able to sync, it is probably the firewall issue with OS, run this to allow port 45444 (used by Reddcoin) and redo step 15
sudo iptables -I INPUT 1 -i eth0 -p tcp --dport 45444 -j ACCEPT sudo iptables -A OUTPUT -p tcp --dport 45444 -j ACCEPT 
step 17: open BEER and enjoy! This is a MUST or the daemon will stop working! I am not kidding!
step 18: Actually, i forgot to mention you need to execute this command for the wallet to stake:
reddcoind walletpassphrase $yourpassword 9999999 true 
ADDITIONAL REMARKS:
From my PC: I am using putty to execute the command, winSCP to monitor the file location on raspberry.
Moving Red Coins out of exchange really a big move, start with normal wallet, don't start with this tutorial :) Ever since I move my coins out of exchange, I am free from all of the ups and downs! Really!
So guys and gals, Redd On!
UPDATE 18 Mar: my first stake has arrived after 6 days staking :)
In case you want to tip me: RaF3TeWqgTzAdnaZQffnsxS74dag13zsAY
Edit 1: Format stuff
Edit 2: Add step 18 to execute staking command.
Edit 3: In case you don't want to compile the source code, you can download my compile version here: https://github.com/hieplenet/reddcoin/releases/tag/v2.0.0.0 (but doing this, you should be aware of the risk of me changing source code for my benefit - I don't change any thing, but you should be cautious, this is the internet :) )
submitted by hieplenet to reddCoin [link] [comments]

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