+
+# For multi-boot system.
+# Check that we aren't in a pxe boot environment.
+# There is probably a better way to do this.
+# We check the reverse condition in 51-multi-boot,
+# and set what os we are installing, but don't check it
+# into git since it changes regularly. Each host needs
+# to have a class of either DEBIAN + (STABLE or STRETCH64 or STABLE_BOOTSTRAP),
+# or UBUNTU + XENIAL64.
+#
+# Other notable classes:
+#
+# REPARTITION: we try to reuse partitions/filesystems to install a new
+# os into a multi-os system, if we see some basic hueristics, like the
+# right amount of them. This overrides that.
+#
+# PARTITION_PROMPT: If we don't see partitions to reuuse, prompt
+# to make sure we really want to repartition and use a completely
+# fresh install. I use this in case our repartition check has
+# a bug in it, or I accidentally set REPARTITION.
+#
+# ROTATIONAL: in a system with ssd and hdd, install to the hdd
+# instead of the default ssd.
+#
+# RAID0: Use raid 0 even if there are >= 4 disks with boot partititions.
+#
+# It's shell looks like this:
+# if [[ ! -e /a/bin/fai/fai-wrapper ]]; then
+# case $HOSTNAME in
+# tp) DEBIAN STABLE ;;
+# # add more multi-boot hostnames here
+# esac
+# fi
+#
+if [[ -e /a/bin/fai/fai-wrapper ]] && isdebian-stable; then
+ echo "STABLE"
+fi
+