fix unusable recovery with newer systemd

Resolves: rbhz#2254871

rear-fix-compatibility-with-newer-systemd-bz2254871.patch

@@ -0,0 +1,54 @@
+From 060fef89b6968f0c8f254e6f612eff839b83c057 Mon Sep 17 00:00:00 2001
+From: Pavel Cahyna <pcahyna@redhat.com>
+Date: Mon, 13 Nov 2023 18:54:41 +0100
+Subject: [PATCH] Do not mount /sys if already mounted
+
+Newer versions of systemd (starting with Fedora 39) seem to mount /sys
+themselves. Mounting it again leads to errors on the recovery system
+startup (startup scripts failing with status=219/CGROUP ), see
+https://github.com/rear/rear/issues/3017.
+
+Check if /sys is already mounted using the `mountpoint` tool and mount it
+only if it is not.
+
+Do the same for the other system mountpoints like /proc, /dev, /dev/pts.
+Not sure if they suffer from the same problem, but they probably could.
+
+N.B. the `mountpoint` command is already among REQUIRED_PROGS.
+---
+ usr/share/rear/skel/default/etc/scripts/boot | 8 ++++----
+ 1 file changed, 4 insertions(+), 4 deletions(-)
+
+diff --git a/usr/share/rear/skel/default/etc/scripts/boot b/usr/share/rear/skel/default/etc/scripts/boot
+index 0f221af3e4..f06e759620 100755
+--- a/usr/share/rear/skel/default/etc/scripts/boot
++++ b/usr/share/rear/skel/default/etc/scripts/boot
+@@ -4,8 +4,8 @@
+ dmesg -n1
+ 
+ # basic mounts
+-mount -t proc -n none /proc
+-mount -t sysfs none /sys
++mountpoint /proc || mount -t proc -n none /proc
++mountpoint /sys || mount -t sysfs none /sys
+ 
+ if type udevd &>/dev/null && ! type udevinfo &>/dev/null; then
+     ### we use udevinfo to filter out old udev versions (<106) that don't
+@@ -13,7 +13,7 @@ if type udevd &>/dev/null && ! type udevinfo &>/dev/null; then
+     udev_version=$(udevd --version)
+     if [[ "$udev_version" -gt 175 ]]; then
+         ### udev > 175 needs devtmpfs
+-        mount -t devtmpfs none /dev
++        mountpoint /dev || mount -t devtmpfs none /dev
+     fi
+ fi
+ 
+@@ -26,7 +26,7 @@ if [[ ! -L /dev/fd ]] ; then
+     ln -s /proc/self/fd /dev/fd
+ fi
+ 
+-mount -t devpts -o gid=5,mode=620 none /dev/pts
++mountpoint /dev/pts || mount -t devpts -o gid=5,mode=620 none /dev/pts
+ 
+ cat /proc/mounts >/etc/mtab 2>/dev/null
+ 

rear.spec

@@ -3,7 +3,7 @@
 
 Name: rear
 Version: 2.7
-Release: 2%{?dist}
+Release: 3%{?dist}
 Summary: Relax-and-Recover is a Linux disaster recovery and system migration tool
 URL: https://relax-and-recover.org
 License: GPL-3.0-only
@@ -53,6 +53,10 @@ Patch108: rear-save-lvm-poolmetadatasize-RHEL-6984.patch
 # https://github.com/rear/rear/commit/ed4c78d5fe493ea368989d0086a733653692f5cb
 Patch109: rear-skip-useless-xfs-mount-options-RHEL-10478.patch
 
+# fix unusable recovery with newer systemd
+# https://github.com/rear/rear/commit/060fef89b6968f0c8f254e6f612eff839b83c057
+Patch110: rear-fix-compatibility-with-newer-systemd-bz2254871.patch
+
 ######################
 # downstream patches #
 ######################
@@ -191,6 +195,9 @@ install -m 0644 %{SOURCE3} %{buildroot}%{_docdir}/%{name}/
 
 #-- CHANGELOG -----------------------------------------------------------------#
 %changelog
+* Tue Feb 06 2024 Lukáš Zaoral <lzaoral@redhat.com> - 2.7-3
+- fix unusable recovery with newer systemd (rbhz#2254871)
+
 * Mon Feb 05 2024 Lukáš Zaoral <lzaoral@redhat.com> - 2.7-2
 - migrate to SPDX license format
 - properly use %%license and %%doc macros