1 files changed, 52 insertions, 0 deletions
diff --git a/modules.d/slx-dmsetup/scripts/generate-fstab-persistent.sh b/modules.d/slx-dmsetup/scripts/generate-fstab-persistent.sh
new file mode 100644
index 00000000..5c6f2b82
--- /dev/null
+++ b/modules.d/slx-dmsetup/scripts/generate-fstab-persistent.sh
@@ -0,0 +1,52 @@
+#!/usr/bin/env bash
+#
+# Hook to generate stage4's fstab entries for persistent partitions
+#
+# Persistent identifiers (MBR types, GPT partition labels)
+# are expected to be specified in the OpenSLX config
+# as 'SLX_PERSISTENT_DEVICE_IDENTIFIER' and their filesystem
+# as 'SLX_PERSISTENT_DEVICE_FILESYSTEM', e.g ext4 or xfs.
+# If not specified, will default to 'auto' but will not
+# active systemd's features 'x-systemd.makefs' and 'x-systemd.growfs'
+
+. /etc/openslx
+
+type -p emergency_shell >/dev/null 2>&1 || source /lib/dracut-lib.sh
+
+# NOTE: systemd makes the mount point path automatically.
+# if multiple exists, take the biggest one (first in the list)
+if [ -n "$SLX_PERSISTENT_DEVICE_IDENTIFIER" ]; then
+	declare -a persistent_dev_list
+	for persistent_dev in \
+		$(get-partitions-by-id ${SLX_PERSISTENT_DEVICE_IDENTIFIER//,/ /}); do
+			[ -z "$persistent_dev" ] && continue
+			persistent_dev_list+=("$persistent_dev")
+	done
+	if [ "${#persistent_dev[@]}" -gt 0 ]; then
+		if [ "${#persistent_dev[@]}" -gt 1 ]; then
+			warn "$0: More than one persistent device found."
+			warn "$0: Will use the biggest one: ${persistent_dev[0]}"
+		fi
+		persistent_dev_systemd_name="$( tr '/' '-' <<< ${persistent_dev[0]:1})"
+		persistent_mount_opts="nofail"
+		if [ -n "$SLX_PERSISTENT_DEVICE_FILESYSTEM" ]; then
+			#persistent_mount_opts+=",x-systemd.requires=ensure-fs@${persistent_dev_systemd_name}"
+			persistent_mount_opts+=",x-systemd.after=ensure-fs@${persistent_dev_systemd_name}"
+		fi
+		(
+		echo -ne "${persistent_dev[0]}\t"
+		echo -ne "${SLX_PERSISTENT_DEVICE_MOUNT_POINT:-/opt/openslx/persistent}\t"
+		echo -ne "${SLX_PERSISTENT_DEVICE_FILESYSTEM:-auto}\t"
+		echo -ne "${persistent_mount_opts}\t0\t2"
+		) >> "$NEWROOT/etc/fstab"
+
+		# drop-in to create filesystem if needed and 
+		#persistent_dev_systemd_name="$( tr '/' '-' <<< ${persistent_dev[0]:1})"
+		#mkdir -p "$NEWROOT/etc/systemd/system/${persistent_dev_systemd_name}"
+		#cat <<- EOF > "$NEWROOT"
+		#EOF
+	else
+		warn "$0: No device with ID '$SLX_PERSISTENT_DEVICE_IDENTIFIER' found."
+	fi
+fi
+true