From faadc1cbcd1ca35393b75f93757a89621957453c Mon Sep 17 00:00:00 2001
From: Kairui Song <kasong@redhat.com>
Date: Tue, 22 Jun 2021 21:49:20 +0800
Subject: [PATCH] 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>
(cherry picked from commit 563f543424c66bf38e6cbd3f489655d45ad9b5c5)

Resolves: #1959336
---
 modules.d/99squash/module-setup.sh | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/modules.d/99squash/module-setup.sh b/modules.d/99squash/module-setup.sh
index 81a5b3f7..9bb30b2e 100644
--- 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"