feat(squash): install umount util

Also install umount binary, make it possible to cleanup squash overlay
mounts. This is useful for other tools reusing the dracut initramfs built
with squash module enabled.

Signed-off-by: Kairui Song <kasong@redhat.com>

diff --git a/modules.d/99squash/module-setup.sh b/modules.d/99squash/module-setup.sh
index e3196213f96dd8030de8ef46cf2b492c6a8a85bb..4e231a6b33d750b7e149f0f32744402522ae7749 100644 (file)
--- a/modules.d/99squash/module-setup.sh
+++ b/modules.d/99squash/module-setup.sh
@@ -42,11 +42,11 @@ installpost() {
     # Install required modules and binaries for the squash image init script.
     if [[ $_busybox ]]; then
         inst "$_busybox" /usr/bin/busybox
-        for _i in sh echo mount modprobe mkdir switch_root grep; do
+        for _i in sh echo mount modprobe mkdir switch_root grep umount; do
             ln_r /usr/bin/busybox /usr/bin/$_i
         done
     else
-        DRACUT_RESOLVE_DEPS=1 inst_multiple sh mount modprobe mkdir switch_root grep
+        DRACUT_RESOLVE_DEPS=1 inst_multiple sh mount modprobe mkdir switch_root grep umount
     fi
 
     hostonly="" instmods "loop" "squashfs" "overlay"