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19 votes
Accepted

How do you make the unicode Bitcoin symbol show correctly in text on Linux?

While the symbol was part of the Unicode 10.0 release, many fonts still don't have the symbol as part of their character set. You need to install a font that includes the symbol to make it show up. ...
Murch's user avatar
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8 votes
Accepted

How to compile Bitcoin-Qt as an .exe on Ubuntu?

.exe files are for windows only. Linux systems do not use the same file extension or file type as windows. I assume you just want to create a Linux binary that can be used on all systems without ...
Ava Chow's user avatar
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8 votes
Accepted

Why is a bitcoin node pruned to 550MB taking up 10GB+?

A pruned node deletes historical block chain data it already validated. However the blocks are not the only data stored by a node. In order to be able to validate blocks a node needs to maintain a ...
Antoine Poinsot's user avatar
5 votes

Can't reach remote bitcoin rpc server

Please keep in mind that exposing your node's RPC interface to the entire internet is considered to be unsafe. RPCs are not encrypted so anything that you send to your node will be in cleartext for ...
Ava Chow's user avatar
  • 70.5k
5 votes
Accepted

How to resolve Bitcoin Daemon Warning of last 100 blocks have unexpected version message?

There is no need to resolve anything - some miners create arbitrary versions to attempt to speed up the mining process, as it gives them an additional field in the block block header to alter without ...
Raghav Sood's user avatar
4 votes

How to compile Bitcoin-Qt as an .exe on Ubuntu?

Since this is the first result that pops up on google when searching "bitcoin windows depends build" and the user asked how to build the .exe (but was actually looking for static build instructions on ...
TheCharlatan's user avatar
4 votes

Can't reach remote bitcoin rpc server

If anyone got problem with reaching bitcoin-rpc server located on vps, the best way in my opinion would be port redirecting over shh. By this command: ssh [user]@[host] -p [port] -L 18332:127.0.0.1:...
ruhtren's user avatar
  • 61
4 votes
Accepted

bitcoind 23.0 crashed mysteriously after 2 hours, what do I do next?

I think I found a likely cause of the crashes. I saw some suspicious log messages: [ 6067.607405] blk_update_request: I/O error, dev sda, sector 155782528 op 0x0:(READ) flags 0x0 phys_seg 1 prio class ...
Epictitus's user avatar
4 votes

Is it possible to run Bitcoin Core (GUI) at the same time as bitcoind?

There is no way to have them run at the same time. bitcoin-qt is an entirely separate binary that contains the entire contents of bitcoind in addition all of the GUI things. It cannot operate on an ...
Ava Chow's user avatar
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3 votes
Accepted

How do I relocate my bitcoin data in bitcoin-qt to save space?

I recommend reading about the Bitcoin Data Directory. You should also take a look at this answer: How do I specify in which directory Bitcoin blocks and other data should be stored? Basically, all ...
Jestin's user avatar
  • 8,812
3 votes
Accepted

Other server wallets than bitcoind recommended for a ubuntu server

The easiest solution would be to upgrade to the recently released version 0.12.0 which allows running a wallet while in pruning mode (which was not possible with 0.11.2). That way you can limit the ...
Murch's user avatar
  • 75.4k
3 votes
Accepted

Running multiple bitcoin instances on same server system

The provided approach is correct. A binary itself does not handle any requests. When you run bitcoind with separate instances of the config and data directories, the system will create multiple ...
Raghav Sood's user avatar
3 votes

How to install Berkeley DB 4.8 on Linux?

You can compile it using this script in the Bitcoin Core repository: https://github.com/bitcoin/bitcoin/blob/master/contrib/install_db4.sh . It will give you instructions about how to then ./configure ...
droid192's user avatar
  • 255
3 votes

How to manually throttle CPU to make computer run cooler?

You could perhaps try: bitcoind -par=<n> Where <n> is the number of script verification threads (-4 to 15, 0 = auto, <0 = leave that many cores free, default: 0) The script ...
stackaccount's user avatar
3 votes

How to update Bitcoin Core if compiled from source?

When updating, just recompile, shut down the running bitcoind, install the new one, and start it again. The configuration file should be compatible, but it may be good to read the release notes of the ...
Pieter Wuille's user avatar
2 votes

electrum CLI - 'daemon is not connected'

you need to run electrum daemon load_wallet load_wallet or other wallet
Time's user avatar
  • 21
2 votes

CheckProofOfWork() Linux error on old altcoins

That error simply means that the block is invalid as the proof of work is incorrect. That has nothing to do with OpenSSL versions. The difficulty of a block is specified by the nBits field of the ...
Ava Chow's user avatar
  • 70.5k
2 votes

How to compile Bitcoin-Qt as an .exe on Ubuntu?

An alternative solution would be to build a tarball archive like the one you can download from the Bitcoin Core website. To do that you have to follow the release process, as explained in: https://...
FedFranz's user avatar
  • 652
2 votes
Accepted

Can't run Bitcoin Core 0.13.1

the ppa for ubuntu is https://launchpad.net/~bitcoin/+archive/ubuntu/bitcoin it shows the support of ubuntu 0.13.1 so you need to run sudo add-apt-repository ppa:bitcoin/bitcoin sudo apt-get update ...
Badr Bellaj's user avatar
  • 1,151
2 votes
Accepted

How to install Electrum wallet in an offline Linux computer?

I needed a special command to use local storage, which at last worked: sudo pip install Electrum-2.7.12.tar.gz --no-index --find-links `pwd` UPDATE: Whenever I've had to do this for the second time, ...
knocte's user avatar
  • 1,784
2 votes
Accepted

Alternative to Nicehash Miner for Linux

There are many blog posts, howtos, etc. available through Google which will tell you know to mine your favourite crypto currency using an NVIDIA GPU on Linux. Please note that NiceHash is something ...
TorstenS's user avatar
  • 184
2 votes

What is the right way to restart bitcoind if it crashes?

If you check in your debug.log you should be able to see if there is any error when you started the node. Probably when the node shutdown uncleanly some of the tables were in an inconsistent state. ...
Willtech's user avatar
  • 3,269
2 votes

free up space by deleting blocks

Depending on your requirements, you can run in prune mode: $ bitcoind -prune <max-MiB> -prune= Reduce storage requirements by enabling pruning (deleting) of old blocks. This allows the ...
JBaczuk's user avatar
  • 7,408
2 votes
Accepted

Where is the downloaded Ardor blockchain stored on windows and linux?

On Windows (when using Ardor mainnet) the blockchain will be downloaded to your "C:\Users\USERNAME\AppData\Roaming\Ardor\nxt_db" folder. Make sure that you can see hidden folders. You can find your ...
MrV's user avatar
  • 310
2 votes
Accepted

How to install bitcoind (Bitcoin Core) on Ubuntu?

useradd bitcoin and passwd bitcoin link /home/bitcoin/.bitcoin to external HDD with chown -R bitcoin:bitcoin git clone bitcoin core in /home/USER/GitStuff add bitcoin ppa repository sudo apt install ...
bomben's user avatar
  • 518
2 votes

How to upgrade Bitcoin Core from 0.18 to 0.20 on Ubuntu 18.04?

This is how I usually do it. Check the wget links in https://bitcoincore.org/bin # Download Bitcoin Core packages for Ubuntu wget https://bitcoincore.org/bin/bitcoin-core-0.20.0/bitcoin-0.20.0-...
Tony Sanak's user avatar
  • 1,689
2 votes

Depends: libgcc-s1 (>=3.0) but it is not installable (Bitcoind wallet dependency problem on Debian)

You probably need a newer version of gcc. This helped me fix for Ubuntu: https://askubuntu.com/questions/1140183/install-gcc-9-on-ubuntu-18-04 TL&DR: adds custom PPA repo so you will able to ...
prohfesor's user avatar
2 votes

Why does the first bitcoin client only supported windows

If you want a definitive answer, you'll need to ask him I'm afraid. My best guess is that Windows development was the thing he was most familiar with (or even only familiar with). The coding style was ...
Pieter Wuille's user avatar
2 votes
Accepted

Running bitcoin-qt as client

There’s simply no support for using the Bitcoin-QT application as a RPC client, it needs far more access to state than is provided by that interface to operate. There’s no real reason to try to ...
Claris's user avatar
  • 15.4k
2 votes

My Bitcoin-QT directories are empty? (Ubuntu)

In linux files and directories that start with a dot(.) are hidden by default. Inside ‘ home/(username)/snap/bitcoin-core/common’ try using ‘ls -la’ and you should be able to list hidden files or ...
Bitcoin_1o1's user avatar

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