From: Trent Piepho <tpiepho@gmail.com>
Date: Thu, 1 Jul 2021 19:19:57 +0000 (-0700)
Subject: udev: Fix by-uuid symlink for ubifs volumes
X-Git-Tag: v249~25
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=21ac7884e9c1684d091d893254bcbe4b83740e9f;p=thirdparty%2Fsystemd.git

udev: Fix by-uuid symlink for ubifs volumes

ubifs volumes have a UUID and the built-in blkid is able to determine
it.  The disk/by-uuid symlink isn't created because ubifs volumes are
not on block devices but on SUBSYSTEM="ubi" devices.  See #20071.

Allow ubi subsystem devices to be processed by the persistent storage
rules too.  The kernel device name matching already allows ubi* to pass.
The existing rules are sufficient to create the link.

The links look like other by-uuid symlinks, for example:
/dev/disk/by-uuid/9a136158-585b-4ba4-9b70-cbaf2cf78a1c -> ../../ubi0_1
---

diff --git a/rules.d/60-persistent-storage.rules b/rules.d/60-persistent-storage.rules
index d98905dc784..6ac17f2b645 100644
--- a/rules.d/60-persistent-storage.rules
+++ b/rules.d/60-persistent-storage.rules
@@ -6,7 +6,7 @@
 ACTION=="remove", GOTO="persistent_storage_end"
 ENV{UDEV_DISABLE_PERSISTENT_STORAGE_RULES_FLAG}=="1", GOTO="persistent_storage_end"
 
-SUBSYSTEM!="block", GOTO="persistent_storage_end"
+SUBSYSTEM!="block|ubi", GOTO="persistent_storage_end"
 KERNEL!="loop*|mmcblk*[0-9]|msblk*[0-9]|mspblk*[0-9]|nvme*|sd*|sr*|vd*|xvd*|bcache*|cciss*|dasd*|ubd*|ubi*|scm*|pmem*|nbd*|zd*", GOTO="persistent_storage_end"
 
 # ignore partitions that span the entire disk