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Installing BU from sources and from Ubuntu repos

Really quick guide to get your bitcoind/qt up and running

Installing binaries from Bitcoin Unlimited Official BU repositories

This is valid for Ubuntu Trusty 14.04 and Xenial 16.04. The repos will provide binaries and debug symbols for 4 different architectures: i386, amd64, armhf and arm64.

sudo apt-get install software-properties-common
sudo add-apt-repository ppa:bitcoin-unlimited/bu-ppa
sudo apt-get update
sudo apt-get install bitcoind bitcoin-qt (# on headlesse server just install bitcoind)

If you are moving from another Bitcoin compatible implementations (Core, Classic, XT) to BU, make sure to follow this plan before moving:

  • backup your wallet (if any)
  • make a backup of the ~/.bitcoin dir
  • if you have installed Core via apt using the ppa bitcoin core repo:
    • sudo apt-get remove bitcoin*
    • sudo rm /etc/apt/sources.list.d/bitcoin-*.*
  • if you have compile Core from source:
    • cd /path/where/the/code/is/stored
    • sudo make uninstall

Other than the PPA repo mentioned above, serving stable version of Bitcoin Unlimited, we have set up another repository which will contain binaries built from source code snapshots of the BU development branch (0.12.1bu currently). If you're interested in testing the latest features included in BU but still not released just add this repository to your system. Use these commands:

sudo add-apt-repository ppa:bitcoin-unlimited/bu-ppa-nightly
sudo apt-get update
sudo apt-get install bitcoind bitcoin-qt

In case you installed both repos on your system, take into account that binaries belonging to the nightly will supersede the ones of the stable one.

Compiling and installing binaries source:

This is valid for Ubuntu Trusty 14.04 and Xenial 16.04.

Installing pre-reqs

If you need bitcoind and bitcoin-cli only:

sudo apt-get install git
sudo apt-get install build-essential libtool autotools-dev
sudo apt-get install automake pkg-config libssl-dev libevent-dev bsdmainutils libboost-all-dev

If you want also to install bitcoin-qt:

sudo apt-get install libqt4-dev libprotobuf-dev protobuf-compiler libqrencode

This is step is optional, to be done only if you need if you need wallet functionality and you want your wallet created with an earlier version of bitcoind

sudo apt-get install software-properties-common
sudo add-apt-repository ppa:bitcoin-unlimited/bu-ppa
sudo apt-get update
sudo apt-get install libdb4.8-dev libdb4.8++-dev

Fetching the code and compile it

mkdir -p ~/src
cd ~/src
git clone https://github.com/BitcoinUnlimited/BitcoinUnlimited.git bu-src
cd bu-src
git checkout <desired_branch/tag>   # e.g. git checkout 0.12.1c
./autogen.sh
# if you want a plain bitcoind binary without GUI withou wallet support, use this configure line:
./configure --disable-wallet --without-gui
# otherwise if you need bitcoin-qt just issue a plain ./configure
export NUMCPUS=`grep -c '^processor' /proc/cpuinfo`
make -j$NUMCPUS
sudo make install #(will place them in /usr/local/bin, this is step is to be considered optional.)

Miscellaneous

  • strip(1) your binaries, bitcoind will get a lot smaller, from 73MB to 4.3MB)
  • execute bitcoind using the -daemon option, bash will fork bitcoin process without cluttering the stdout