Refer to doc/release-notes.md for directions on obtaining inputs/ and using gitian to build Datasavercoin.
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Gavin's notes on getting gitian builds up and running using KVM:
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These instructions distilled from:
  https://help.ubuntu.com/community/KVM/Installation
... see there for complete details.

You need the right hardware: you need a 64-bit-capable CPU with hardware virtualization support (Intel VT-x or AMD-V). Not all modern CPUs support hardware virtualization.

You probably need to enable hardware virtualization in your machine's BIOS.

You need to be running a recent version of 64-bit-Ubuntu, and you need to install several prerequisites:
  sudo apt-get install ruby apache2 git apt-cacher-ng python-vm-builder qemu-kvm

Sanity checks:
  sudo service apt-cacher-ng status   # Should return apt-cacher-ng is running
  ls -l /dev/kvm   # Should show a /dev/kvm device

gitian-builder now also supports building using LXC. See
  https://help.ubuntu.com/12.04/serverguide/lxc.html
... for how to get LXC up and running under Ubuntu.

If your main machine is a 64-bit Mac or PC with a few gigabytes of memory
and at least 10 gigabytes of free disk space, you can gitian-build using
LXC running inside a virtual machine.

Here's a description of Gavin's setup on OSX 10.6:

1. Download and install VirtualBox from https://www.virtualbox.org/

2. Download the 64-bit Ubuntu Desktop 12.04 LTS .iso CD image from
  http://www.ubuntu.com/

3. Run VirtualBox and create a new virtual machine, using the
  Ubuntu .iso (see the VirtualBox documentation for details).
  Create it with at least 2 gigabytes of memory and a disk
  that is at least 20 gigabytes big.

4. Inside the running Ubuntu desktop, install:
  sudo apt-get install debootstrap lxc ruby apache2 git apt-cacher-ng python-vm-builder

5. Still inside Ubuntu, tell gitian-builder to use LXC, then follow the "Once you've got the right
  hardware and software" instructions above:
  export USE_LXC=1
  git clone git://github.com/bitcoin/bitcoin.git
  ... etc
