dracut/0018-feat-dracut-initramfs-restore-unpack-erofs-images.patch

From ac4b18bf89bfa440ff741557fe9928cd2b19b66e Mon Sep 17 00:00:00 2001
From: Philipp Rudo <prudo@redhat.com>
Date: Tue, 30 Jul 2024 17:24:28 +0200
Subject: [PATCH 18/32] feat(dracut-initramfs-restore): unpack erofs images

Follow the example for squashfs images and also unpack erofs images in
dracut-initramfs-restore.

Signed-off-by: Philipp Rudo <prudo@redhat.com>

(cherry picked from commit b390e194911835e6bd24eeeb0946e374852b8ddc)

Resolves: RHEL-43460
---
 dracut-initramfs-restore.sh              | 10 ++++++++--
 modules.d/95squash-erofs/module-setup.sh |  2 +-
 2 files changed, 9 insertions(+), 3 deletions(-)

diff --git a/dracut-initramfs-restore.sh b/dracut-initramfs-restore.sh
index 74725308..98cfaed7 100755
--- a/dracut-initramfs-restore.sh
+++ b/dracut-initramfs-restore.sh
@@ -81,12 +81,18 @@ else
     exit 1
 fi
 
-if [[ -d squash ]]; then
-    if ! unsquashfs -no-xattrs -f -d . squash-root.img > /dev/null; then
+if [[ -f squashfs-root.img ]]; then
+    if ! unsquashfs -no-xattrs -f -d . squashfs-root.img > /dev/null; then
         echo "Squash module is enabled for this initramfs but failed to unpack squash-root.img" >&2
         rm -f -- /run/initramfs/shutdown
         exit 1
     fi
+elif [[ -f erofs-root.img ]]; then
+    if ! fsck.erofs --extract=. --overwrite erofs-root.img > /dev/null; then
+        echo "Squash module is enabled for this initramfs but failed to unpack erofs-root.img" >&2
+        rm -f -- /run/initramfs/shutdown
+        exit 1
+    fi
 fi
 
 if grep -q -w selinux /sys/kernel/security/lsm 2> /dev/null \
diff --git a/modules.d/95squash-erofs/module-setup.sh b/modules.d/95squash-erofs/module-setup.sh
index 71c2b672..d763a902 100755
--- a/modules.d/95squash-erofs/module-setup.sh
+++ b/modules.d/95squash-erofs/module-setup.sh
@@ -1,7 +1,7 @@
 #!/bin/bash
 
 check() {
-    require_binaries mkfs.erofs || return 1
+    require_binaries mkfs.erofs fsck.erofs || return 1
     require_kernel_modules erofs || return 1
 
     return 255
-- 
2.42.0