From 2cfca5b38afbe321430f1c8cd3194ce5bb0ceb18 Mon Sep 17 00:00:00 2001
From: Mike Fleetwood <mike.fleetwood@googlemail.com>
Date: Sat, 8 Jan 2022 10:45:31 +0000
Subject: [PATCH] Remove support for old volatile udev rules below /dev/.udev

Udev stopped supporting volatile udev rules in /dev/.udev/rules.d in
udev 176, released 2012-01-11 [1].  The oldest supported distributions
use much more recent combined systemd and udev releases.

    Distro            EOL        udevadm -V
    Debian 9          2022-Jun   232
    RHEL / CentOS 7   2024-Jun   219
    Ubuntu 18.04 LTS  2023-Apr   237

Now udev only reads volatile rules from /run/udev/ruled.d [2].  Simplify
the code a little.

[1] udev 176 NEWS
    https://git.kernel.org/pub/scm/linux/hotplug/udev.git/tree/NEWS?h=176
    "A writable /run directory (ususally tmpfs) is required now for a
    fully functional udev, there is no longer a fallback to /dev/.udev."
[2] man 7 udev
    "RULES FILES
    The udev rules are read from the files located in the system rules
    directory /usr/lib/udev/rules.d, the volatile runtime directory
    /run/udev/rules.d and the local administration directory
    /etc/udev/rules.d."
---
 gparted.in | 23 +++++++++--------------
 1 file changed, 9 insertions(+), 14 deletions(-)

diff --git a/gparted.in b/gparted.in
index 3cefc2e3..9a4e65f2 100755
--- a/gparted.in
+++ b/gparted.in
@@ -179,26 +179,21 @@ fi
 # start Linux Software RAID array members and Bcache devices.
 #
 # Udev stores volatile / temporary runtime rules in directory /run/udev/rules.d.
-# Older versions use /dev/.udev/rules.d instead, and even older versions don't
-# have such a directory at all.  Volatile / temporary rules are use to override
-# default rules from /lib/udev/rules.d.  (Permanent local administrative rules
-# in directory /etc/udev/rules.d override all others).  See udev(7) manual page
-# from various versions of udev for details.
+# Volatile / temporary rules are used to override default rules from
+# /lib/udev/rules.d.  (Permanent local administrative rules in directory
+# /etc/udev/rules.d override all others).  See udev(7) manual page for details.
 #
 # Default udev rules containing mdadm to incrementally start array members are
 # found in 64-md-raid.rules and/or 65-md-incremental.rules, depending on the
 # distribution and age.  The rules may be commented out or not exist at all.
 #
 UDEV_TEMP_RULES=''  # List of temporary override rules files.
-for udev_temp_d in /run/udev /dev/.udev; do
-	if test -d "$udev_temp_d"; then
-		test ! -d "$udev_temp_d/rules.d" && mkdir "$udev_temp_d/rules.d"
-		udev_mdadm_rules=`egrep -l '^[^#].*mdadm (-I|--incremental)' /lib/udev/rules.d/*.rules 2> /dev/null`
-		udev_bcache_rules=`ls /lib/udev/rules.d/*bcache*.rules 2> /dev/null`
-		UDEV_TEMP_RULES=`echo $udev_mdadm_rules $udev_bcache_rules | sed 's,/lib/udev,/run/udev,g'`
-		break
-	fi
-done
+if test -d /run/udev; then
+	test ! -d /run/udev/rules.d && mkdir /run/udev/rules.d
+	udev_mdadm_rules=`egrep -l '^[^#].*mdadm (-I|--incremental)' /lib/udev/rules.d/*.rules 2> /dev/null`
+	udev_bcache_rules=`ls /lib/udev/rules.d/*bcache*.rules 2> /dev/null`
+	UDEV_TEMP_RULES=`echo $udev_mdadm_rules $udev_bcache_rules | sed 's,/lib/udev,/run/udev,g'`
+fi
 for rule in $UDEV_TEMP_RULES; do
 	touch "$rule"
 done