Mike Fleetwood authored Aug 06, 2023 and Curtis Gedak committed Aug 15, 2023

When blanking of udev rules was first tested [1][2] and added [3] all
the distributions at the time (CentOS 6, Debian 6, Fedora 19,
openSUSE 12.2, Ubuntu 12.04 LTS) stored the system default rules in
directory /lib/udev/rules.d.  Now most distributions (CentOS Stream 9,
Debian 11, Fedora 38, Ubuntu 22.04 LTS, openSUSE Leap 15.4) store the
system default rules in directory /usr/lib/udev/rules.d.  Most of these
distributions have a merged /usr file system [4][5] so /lib is a symlink
to /usr/lib and the system default rules can still found using the
original directory.  But openSUSE 15.4 doesn't have a merged /usr so the
gparted shell wrapper doesn't find the system default rules in directory
/usr/lib/udev/rules.d and doesn't prevent auto starting of Linux
Software RAID arrays and bcache devices during a storage probe.

An extra consideration is that Alpine Linux 3.17 doesn't have a merged
/usr file system, but has both /lib/udev/rules.d and
/usr/lib/udev/rules.d directories with different rules files.  Therefore
fix this by checking for system default udev rules in both directories.

[1] Bug 709640 - Linux Swap Suspend and Software RAID partitions not
    recognised, comment 7
    https://bugzilla.gnome.org/show_bug.cgi?id=709640#c7
[2] Bug 709640 - Linux Swap Suspend and Software RAID partitions not
    recognised, comment 12
    https://bugzilla.gnome.org/show_bug.cgi?id=709640#c12
[3] a255abf3
    Prevent GParted starting stopped Linux Software RAID arrays (#709640)
[4] The Case for the /usr Merge
    http://0pointer.de/blog/projects/the-usr-merge
[5] The Case for the /usr Merge
    https://www.freedesktop.org/wiki/Software/systemd/TheCaseForTheUsrMerge/

Closes !116 - Systemd mount masking and udev rule location updates