Multi-boot/distro btrfs provisioning

Some things are specific to my home network. Uses PXE, designed for bare
metal but also works for pxe booted VM.

Features people may find useful: installs encrypted arch, debian stable,
& debian testing all on the same btrfs filesystem, smartly utilizing
multiple disks, with scripts to automatically decrypt on reboots. The
partititioning and filesystem script is the biggest part and is at
fai/config/hooks/partition.DEFAULT. Other debian based distros 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 a project of the same name which this
project uses for debian installs. It stands for "fully automated
installer."

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

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)
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
pxe-server # temporarily enable (usually) fai or arch boot server
wrt-setup-remote  # setup my router

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.