http://bugzilla.novell.com/show_bug.cgi?id=604255
http://bugzilla.novell.com/show_bug.cgi?id=604255#c8
--- Comment #8 from Martin Wilck 2010-06-18 22:02:21 UTC ---
I have a test case for this problem that I can reproduce in an installed
system. The problem is the command "echo add >/sys/block/dm-<XY>/uevent" that
YaST executes. It seems to make udev think that the device is no longer a dm
device.
athene:/etc/udev/rules.d # lvcreate -L 100M -n TEST vg
Logical volume "TEST" created
athene:/etc/udev/rules.d # ls -l /dev/mapper/vg-TEST /dev/vg/TEST
lrwxrwxrwx 1 root root 7 Jun 18 23:56 /dev/mapper/vg-TEST -> ../dm-7
lrwxrwxrwx 1 root root 7 Jun 18 23:56 /dev/vg/TEST -> ../dm-7
athene:/etc/udev/rules.d # echo 'add' >/sys/block/dm-7/uevent
athene:/etc/udev/rules.d # ls -l /dev/mapper/vg-TEST /dev/vg/TEST
ls: cannot access /dev/mapper/vg-TEST: No such file or directory
ls: cannot access /dev/vg/TEST: No such file or directory
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