+# into git since it changes regularly.
+# It's code looks like this:
+# if [[ ! -e /a/bin/fai/fai-wrapper ]]; then
+# case $HOSTNAME in
+# tp) DEBIAN STABLE VOL_STABLE STABLE_FREE;;
+# # add more multi-boot hostnames here
+# esac
+# fi
+#
+# Each host defines the base distro: UBUNTU or DEBIAN.
+# the disto version, also the basefile name if we aren't installing debian stable:
+# STABLE, STRETCH64, XENIAL64, BELANOS64
+# the distro subvol name, we can add as many of these as we want:
+# VOL_STABLE, VOL_STABLE_BOOTSTRAP, VOL_STRETCH, VOL_XENIAL, VOL_BELANOS
+# Using VOL_STABLE_BOOTSTRAP sets up the install to act like a pxe rom if
+# grub sets a specific var.
+# and the class which defines the apt sources files we want,
+# STABLE_FREE, STABLE_NONFREE, TESTING_FREE, TESTING_NONFREE,
+# XENIAL_FREE (no XENIAL_NONFREE setup yet), BELANOS, STABLE_LINODE.
+# This is a little redundant in some cases, but it keeps things
+# simpler.
+#