7 votes

How to tell bitcoind to use more memory and CPU

It will by default use all CPU cores available. However, if the database cache is too small, your node will spend its time fetching and writing database entries from/to disk, rather than verification ...
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7 votes
Accepted

Overclock Antminer U3 running on raspberry pi

I set up my rasp pi b+ and U3 mining rig using the instructions in this forum post, with screen and cgminer. The command relevant to over clocking the raspi that I used is the following: sudo ./...
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  • 186
6 votes

What are the minimal system requirements to run a full Bitcoin node?

You can run a Raspberry Pi with bitcoind no problem. I have several Pi's running bitcoind in various locations and some of them have over 100 connections. Use a 64GB flash card and make sure you have ...
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  • 61
6 votes

Can a raspberry pi zero run bitcoin core 0.16.1 and sync up without downloading the entire blockchain?

You can't avoid downloading the block chain with Bitcoin Core or any other full node. That is inherent to their functioning. You don't have to store it, however, if you enable pruning. This would ...
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6 votes
Accepted

Is Bitcoin Core storage compatible across different machine architecture?

The database format is supposed to be compatible across architectures.
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5 votes
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Is it possible to share blockchain data between multiple nodes?

I don't think this is possible; you'd have multiple node instances trying to read/write a single data directory. This is not the intended operation, you'd likely end up with corrupt data. If you ...
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  • 17.3k
4 votes
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Efficient way to migrate a pruned node

Copying .bitcoin folder should work. Make sure bitcoind is not running (try ps -ef | grep bitcoin) before you attempt to copy. Also make sure bitcoin.conf is same in both places Also, change the ...
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  • 1,892
4 votes
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Can you run a bitcoin lightning node on a raspberry pi zero?

Will a bitcoin lightning node run on a raspberry pi zero? This probably depends on what you are doing on the node, how much traffic it gets, etc. I have one running on a Raspberry Pi 3B with ...
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  • 7,060
4 votes

How does bitcoind choose its data directory?

Unless explicitly told otherwise, the datadir is always placed in /home/$USER/.bitcoin, there is no logic for automatically using any location other than this. The configuration file is always in the ...
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  • 15k
3 votes

Install bitcoin core on raspberry pi 3

It does work. Yes you need an external HD for the blockchain data (unless you want to run a pruned node) and Raspian is fine. In my opinion the best tutorial for setting up a full node on RP3 is ...
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3 votes

How does bitcoind choose its data directory?

One of the ways of pointing to your data directory is making a change to your bitcoin.conf file (it's usually located in ~/.bitcoin/bitcoin.conf path) Add the line: datadir = /...
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  • 1,584
3 votes
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My lightning node is unreachable and lightning-rpc': Connection refused

The first error you are seeing might be related to a previous peer that is no longer reachable. The type of the error (Failed to connect 10 socket: Network is unreachable) suggests that it is using a ...
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  • 8,764
3 votes
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bitcoind no such file or directory when trying to execute on Ubuntu for Raspberry Pi 4

Edit: you’re using the wrong architecture bitcoind binary, gnueabihf means armv7 hard float, which is 32-bit. There are 3 possibilities: Download the correct Bitcoin binary for arm64 architecture (...
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  • 66
2 votes
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Why do I get this error when I try to install CGMiner on my RaspberryPi?

Might as well give this old question an answer. cgminer 3.7.2 (which was obsolete even when this question was asked) required scrypt to be enabled as a compile-time option with ./configure --enable-...
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2 votes

Overclock Antminer U3 running on raspberry pi

I have 2 u3 antminers running on a raspberry pi b+ I could not get my u3 any faster until i used minera software,set to cgminer (offical) with command: --au3-volt 830 --au3-freq 250.0 In the ...
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  • 21
2 votes

Is new cryptocurrency that runs only in raspberry pi possible?

It possible to inject hardware detecting code into code of your mining software, but to protect the mechanism you cannot publish it as an open-source. That will make your currency not so popular as ...
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2 votes

How to update my RaspNode? no GUI only CLI

You should uninstall the installed version first completely with sudo apt-get remove bitcoind before manually building the binaries from source. Make sure that you backup your wallet (and eventually ...
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  • 188
2 votes

Could the $25/£16 Raspberry Pi computer be used to run mining equipment?

Reading this in 2017 with a chuckle. The Pi is pretty much the defacto controller due to its low cost and energy use. I have one running an ASIC over USB with cgminer, compiled on the Pi. Some of ...
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2 votes
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Step by Step instructions on installing Bitcoin Core 0.14 on Raspberry Pi Zero and 1/2/3?

This is a guide I used to install a full node on a Raspberry Pi 3B with 1GB of RAM. You have to compile the code and therefore need a RAM swap on an external HDD. Make sure it is mounted correctly, or ...
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  • 458
2 votes
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Can a raspberry pi zero run bitcoin core 0.16.1 and sync up without downloading the entire blockchain?

Like others have answered, you don't need to store the entire blockchain, in your bitcoin.conf file, you can just specify the number of blocks to keep and the old blocks will be pruned. I was doing ...
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  • 354
2 votes

EXCEPTION: 15dbwrapper_error

Your database is corrupted. This probably means the RPi overheated, or its storage is crappy. This is not unusual for RPi class hardware. To recover, you'll need to reindex.
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2 votes

Where can I find a usefull log if bitcoind stopped for no apparent reason?

That sounds like it's going out of memory and is killed by the system. Especially on a low-memory device like an RPi3 this seems very likely. For information on how to reduce bitcoind memory usage, ...
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2 votes
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Is it actually possible to install Bitcoin full node on a Raspberry Pi 3B+?

I have a Bitcoin full node perfectly running on my raspberry pi 3B (of course, without mining). The biggest constraint in the installation of bitcoin core (though there are also other implementation ...
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  • 364
2 votes

How does bitcoind choose its data directory?

When you start bitcoind, you can specify a non-default data directory: $ bitcoind datadir=/your/custom/filepath This will override the option set in the bitcoin.conf file, if there is one set there....
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1 vote

Is it still possible to do cpu mining for experimenting?

Yes it is technically feasible to solo mine with a rpi3. The 'fastest' miner you could run would be minerd. However, there is a slim-to-none chance you will ever mine a block on the bitcoin mainnet, ...
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  • 601
1 vote

Bitcoin full node installation on Raspberry Pi3 not working

Looks like libboost is not installed? Try: apt install libboost-all-dev -y Then rebuild: ./autogen.sh; ./configure; make
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1 vote

How to properly terminate a bitcoin-qt process?

kill <PID> should just work fine.
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  • 6,189
1 vote

Is it necessary to mount an external hard disk to save blockchain to external hard disk on Raspberry PI?

I get the following error: Error: Cannot obtain a lock on data directory /media/pi/FreeAgent GoFlex Drive Bitcoin Core is probably already running. No such file or directory. I tried stopping ...
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  • 61.4k
1 vote

blockchain on RPi

I have had some experience with RasPI and live bitcoin client. Compiled it on a SuSE Linux. For a live client, the RasPI 2B+ was way too slow to run with live data stream (blockchain). Neither Bitcoin ...
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  • 5,006
1 vote

Bitcoin cash testnet core crash

Since it works without your wallet file, it is likely that your wallet has some sort of corruption which is causing Bitcoin ABC to error on start. Try starting Bitcoin ABC with -salvagewallet and see ...
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