[slx-runmode] support for SLX_SYSTEMD_TARGET

to overwrite the default.target configured within stage4

2 files changed, 26 insertions, 0 deletions

diff --git a/builder/modules.d/slx-runmode/module-setup.sh b/builder/modules.d/slx-runmode/module-setup.sh
new file mode 100755
index 00000000..7705ad06
--- /dev/null
+++ b/builder/modules.d/slx-runmode/module-setup.sh
@@ -0,0 +1,13 @@
+#!/usr/bin/env bash
+check() {
+	# Tell dracut that this module should only be included if it is required
+	# explicitly.
+	return 255
+}
+depends() {
+	echo dnbd3-rootfs
+}
+install() {
+	# unpacking config.tgz should be pre-pivot 10, let's do this afterwards
+	inst_hook pre-pivot 50 "$moddir/scripts/runmode.sh"
+}
diff --git a/builder/modules.d/slx-runmode/scripts/runmode.sh b/builder/modules.d/slx-runmode/scripts/runmode.sh
new file mode 100644
index 00000000..a563486f
--- /dev/null
+++ b/builder/modules.d/slx-runmode/scripts/runmode.sh
@@ -0,0 +1,13 @@
+#!/usr/bin/env bash
+#
+# SLX_SYSTEMD_TARGET overrides the default.target to boot
+# the stage4 into - required for the so-called 'run mode'.
+
+. /etc/openslx
+
+if [ -n "$SLX_SYSTEMD_TARGET" ]; then
+	SLX_SYSTEMD_TARGET="${SLX_SYSTEMD_TARGET%.target}.target"
+	ln -sf "$SLX_SYSTEMD_TARGET" "$NEWROOT/etc/systemd/system/default.target"
+fi
+
+true