Multi-boot/distro btrfs provisioning

Some things are specific to my home network. Uses pxe or pxe-kexec (for
systems like libreboot with no pxe rom, we boot into a live cd or distro
for bootsraping). Works for bare-metal or vms.

Features people may find useful: installs encrypted trisquel belanos,
arch, debian stable, & debian testing all on the same btrfs filesystem.
Smartly utilizes multiple disks, with scripts to automatically decrypt
on reboots. The partititioning and filesystem script is at
fai/config/hooks/partition.DEFAULT. Other debian based distros at least
as new as ubuntu 14.04 should work fine, and I'm planning to add Fedora
support. Disks are grouped as ssd or hdd and raided in raid 1 or raid 0
per configuration. The base partitions are divided into boot, swap, and
root, (only boot is unencrypted). There are scripts to resize those
partitions post-provision and while the system is running.

The repo name fai is copied from the debian project of the same name,
meaning "fully automated installer."

It also fully automates configuration of an openwrt router after manual
initial installation.

After provisionining is done, I sync files using unison, then automate
further setup using a different set of scripts,
https://iankelling.org/git/?p=distro-setup;a=tree.

My network is a wndr3700v2 router with openwrt on it and a few pcs/laptops.

Since fai requires a debian server as the fai server, there are also
scripts to automate a debian install using pxe and preseeding, which can
be done from any distro.

Some of the scripts have dependencies for some simple obvious utility
scripts from https://iankelling.org/git, and of course there are some
hostnames that are specific to my network.

Main scripts meant to be called interactively:

arch-init-remote # install arch (after it's been booted into it's setup env)
chboot # Set grub to boot into a different distro (installed earlier)
dsfull # install & setup a new fai distro (if data partition already synced)
eboot # reboot and keep disks encrypted
fai-kexec # kexec to fai tftp server that pxe would normally point to
fai-revm  # test fai on a fresh vm
faiserver-revm # create a vm which is a fai server using pxe & preseed file
faiserver-uninstall # uninstall fai-server
faiserver-setup # install fai-server on the current machine
fresize # resize swap or boot partitions in a host
myfai-chboot # Sets up tftp pxe config on fai server
pxe-server # temporarily enable (usually) fai or arch boot server
wrt-setup-remote  # setup my router
ubuntu-xenial-live-fai-kexec # do fai install from xenial live cd using kexec
myfai-chboot # use instead of pxe-server for fai kexec based install

License stuff:
The license for the project is GPLv2 or later, mostly because fai is
and I periodically rebase off their example setup for debian. Also,
there is a modified encrypt.upstream, which is from the cryptsetup
package in arch, which is under the same license.