Reinstall apk packages on reboot

Because we are running from a RAM disk, any packages not installed
from the ISO are removed after a reboot. They are still registered
in /etc/apk/world (which is on /mnt/data/etc/apk/world), and the
packages themselves are cached on /mnt/data/apk/cache, so reinstalling
is quick and easy.

Signed-off-by: Jan Dubois <[email protected]>

Author: jandubois

pkg/cidata/cidata.TEMPLATE.d/boot/04-persistent-data-volume.sh

@@ -90,4 +90,6 @@ if [ "$(awk '$2 == "/" {print $3}' /proc/mounts)" == "tmpfs" ]; then
 	done
 	# Make sure to re-mount any mount points under /tmp
 	mount -a
+	# Reinstall packages from /mnt/data/apk/cache into the RAM disk
+	apk fix --no-network
 fi