[archiso] Update archiso_shutdown hook

* Add libraries from /usr/lib and /sbin/losetup.
* Use used_block_devices to detach loop devices.

Signed-off-by: Gerardo Exequiel Pozzi <vmlinuz386@yahoo.com.ar>

1 files changed, 5 insertions, 8 deletions

diff --git a/archiso/archiso_shutdown b/archiso/archiso_shutdown
index 26220a6..c430014 100644
--- a/archiso/archiso_shutdown
+++ b/archiso/archiso_shutdown
@@ -10,10 +10,8 @@ umount $(mount | awk '$3 ~/^\/oldroot/ {print $3}' | sort -r)
 # Remove all dm-snapshot devices.
 dmsetup remove_all
 
-# Remove all loopback devices made for dm-snapshots devices
-# other misc loops like used for pure squashfs images
-# and unmount/detach *.fs.sfs images.
-for _lup in $(ls -r /dev/loop[1-9][0-9][0-9]); do
+# Remove all loopback devices.
+for _lup in $(grep ^/dev/loop /oldrun/archiso/used_block_devices | tac); do
     if ! losetup -d ${_lup} 2> /dev/null; then
         umount -d ${_lup}
     fi
@@ -24,11 +22,10 @@ umount /oldrun/archiso/cowspace
 
 # Unmount boot device if needed (no copytoram=y used)
 if [[ ! -d /oldrun/archiso/copytoram ]]; then
-    umount /oldrun/archiso/bootmnt
-    # Detach img_loop= and unmount img_dev= (archiso_loop_mnt hook)
-    if [[ -f /oldrun/archiso/img_dev_loop ]]; then
-        losetup -d $(cat /oldrun/archiso/img_dev_loop)
+    if [[ -d /oldrun/archiso/img_dev ]]; then
         umount /oldrun/archiso/img_dev
+    else
+        umount /oldrun/archiso/bootmnt
     fi
     if [[ -f /oldrun/archiso/nbd_client.pid ]]; then
         nbd-client -d /dev/nbd0