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.
@ -9,9 +9,11 @@ You need the right hardware: you need a 64-bit-capable CPU with hardware virtual
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:
... 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
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/
1. Download and install VirtualBox from [https://www.virtualbox.org/](https://www.virtualbox.org/)
2. Download the 64-bit Ubuntu Desktop 12.04 LTS .iso CD image from
http://www.ubuntu.com/
[http://www.ubuntu.com/](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.
3. Run VirtualBox and create a new virtual machine, using the Ubuntu .iso (see the [VirtualBox documentation](https://www.virtualbox.org/wiki/Documentation) for details). Create it with at least 2 gigabytes of memory and a disk that is at least 20 gigabytes big.
This is a Linux bash script that will set up tc to limit the outgoing bandwidth for connections to the Bitcoin network. It limits outbound TCP traffic with a source or destination port of 8333, but not if the destination IP is within a LAN (defined as 192.168.x.x).
This means one can have an always-on bitcoind instance running, and another local bitcoind/bitcoin-qt instance which connects to this node and receives blocks from it.