[linux-lvm] fsadm bug
Oliver Mangold
o.mangold at googlemail.com
Sat Feb 18 14:58:46 UTC 2012
Hi,
I would like to report a bug in the fsadm script.
Trying to resize a filesystem which has a device name that is equal to
the beginning of another mounted device (which of course can happen with
the devices in /dev/mapper created for lvm) fails for me. The script
complains that the filesystem is mounted (even if it is not), then tries
to unmount *the other* filesystem (which can fail, of course). E.g. you
want to resize a filesystem with the name /dev/mapper/foobar but there
another filesystem mounted somewhere from the device /dev/mapper/foo the
problem appears.
Reason is that the device path is simply grepped from /proc/mounts
without checking that the matched string is the whole device path. I
attached a quick fix which solved the problem for me, but imho it does
not fix all potential issues here. The device path is used unmodified as
a regexp and also it is not checked if the match is in the correct
column of the line.
Best,
Oliver
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