feat(dmsquash-live): add busybox blkid compatibility

busybox blkid does not support -s argument. Use POSIX shell
to filter out the tags needed from the output of the blkid
invocation.

Fixes https://github.com/dracut-ng/dracut-ng/issues/2207
for the dmsquash-live module.

diff --git a/modules.d/70dmsquash-live/dmsquash-live-root.sh b/modules.d/70dmsquash-live/dmsquash-live-root.sh
index afbdc1393ef1ac165eefe80d45f176f51a4d0ef2..d41f242d7285398655e1ec1078f123b6f6ac78d4 100755 (executable)
--- a/modules.d/70dmsquash-live/dmsquash-live-root.sh
+++ b/modules.d/70dmsquash-live/dmsquash-live-root.sh
@@ -95,7 +95,11 @@ ln -s "$livedev" /run/initramfs/livedev
 # determine filesystem type for a filesystem image
 det_img_fs() {
     udevadm settle >&2
-    blkid -s TYPE -u noraid -o value "$1"
+
+    # avoid blkid options to maintain compatibility with busybox
+    devicetype=$(blkid "$1")
+    fstype="${devicetype#*TYPE=\"}"
+    echo "${fstype=%%\"*}"
 }
 
 CMDLINE=$(getcmdline)