PXE install w multi-boot, btrfs & Libreboot support

Some things are specific to my home network, and uses files with secrets
that are not in this repo. Uses pxe or pxe-kexec (on libreboot, I have
not added a pxe rom, I use a minimal debian stable subvolume which acts
like a pxe rom). I use this for bare metal and vms, and two scripts
which can run post boot so I use them on vps distributed image as well.

Features people may find useful: installs encrypted trisquel belenos, ,
debian jessie, debian stretch, ubuntu 16.04, and arch (havne't done
recently, probably a bit broken), in a multi-boot setup using multiple
subvolumes of a single btrfs filesystem.  Utilizes multiple disks, with
scripts to automatically decrypt on intentional reboots, but not after
shutdown or power loss.

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.

People who use fai may find these things as useful examples: it uses
dnsmasq (on a openwrt machine) for dhcp instead of the isc
dhcp. fai-wrapper is a small script to use basic fai classes outside of
fai. It does not use the fai partitioning tool, but the script is
inspired from it and works outside of fai. It supports running a fai
server on debian within android via Maru.

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

After provisionining is done, I sync files using btrfs, or unison for
vps, 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.

All scripts meant to be used directly are listed here:


# Scripts to setup the environment for the install

arch-pxe # Setup arch pxe boot server from an arch base image
fai-redep # Deploy fai configuration to host "faiserver"
faiserver-revm # using pxe & preseed, create a vm which is a fai server
faiserver-uninstall # uninstall fai-server
faiserver-setup # install fai-server on the current machine
myfai-chboot # setup fai tftp and nfs. useful with pxe-kexec
pxe-server # disable/enable pxe dhcp, tfp, and nfs
wrt-setup-remote  # setup my router in general: dhcp, dns, etc.


# Script to do a distro install

dsfull # install & post-install a new fai distro
arch-init-remote # install arch after it's been booted into it's setup env
fai-kexec # Kexec this or a remote machine using host faiserver
live-kexec # fai kexec from upstream live cds, e.g. curl live-kexec|bash


# Test scripts

arch-revm # test arch install on a fresh vm
fai-revm  # test fai install on a fresh vm


# Scripts to call after a distro install for various reasons

chboot # Set grub to boot into a different distro (installed earlier)
install-chboot # reinstall chboot to /boot subvols, for chboot updates.
eboot # reboot without automatic disk decryption
fai-wrapper # use fai classes outside of fai. sourced, not called.
faiserver-disable # Disable the fai nfs server exports
fresize # resize swap or boot partitions in a host


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