# This script only checks if we found a usable partition for the
# future /tmp. The discovery of that partition is done by udev during
# the initqueue. If a valid partition is found (either GPT with the label
# OPENSLX_TMP or MBR with the type 0x44) its path will be written to
# /tmp/openslx.tmpdisk
OPENSLX_TMP_DISK_FLAG="/tmp/openslx.disk.tmp"

if [ ! -e "$OPENSLX_TMP_DISK_FLAG" ]; then
	warn "'$OPENSLX_TMP_DISK_FLAG' not found!"
	warn "Systemd will manage $NEWROOT/tmp on its own."
	# no partition for the future /tmp found, just
	# let systemd manage it then (probably a tmpfs)
	return 1
fi

# in /tmp/openslx.disk.tmp is the name of the device
# to mount as /tmp in the real system
# meaning we need to mount it to /sysroot/tmp here.

OPENSLX_TMP_DISK_DEV="$(cat $OPENSLX_TMP_DISK_FLAG)"

# sanity check: is the content a block device?
if [ ! -b "$OPENSLX_TMP_DISK_DEV" ]; then
	warn "'$OPENSLX_TMP_DISK_DEV' appears not to be a block device!"
	warn "Systemd will manage $NEWROOT/tmp on its own."
	return 1
fi

# all good, keep on
if ! mount -t auto "$OPENSLX_TMP_DISK_DEV" /sysroot/tmp; then
	# something else went wrong :(
	warn "Mounting '$OPENSLX_TMP_DISK_DEV' to '/sysroot/tmp' failed with: $!"
	warn "Systemd will manage $NEWROOT/tmp on its own."
	return 1
fi

# still here? mount worked wohoo
return 0