[CentOS] filesystem rpm fails when /home is NFS mounted

Michael A. Peters mpeters at mac.com
Fri Apr 3 02:10:16 UTC 2009

Tsai Li Ming wrote:
> Scott Silva wrote:
>> on 4-2-2009 2:00 PM Anne Wilson spake the following:
>>> On Thursday 02 April 2009 21:40:59 R P Herrold wrote:
>>>> On Wed, 1 Apr 2009, Paul Heinlein wrote:
>>>>> I don't know if it's a bug or a feature, but the
>>>>> filesystem-2.4.0-2.el5.centos rpm won't upgrade cleanly if /home is an
>>>>> NFS filesystem.
>>>> I confirm this is present in 5.3 where /home is an NFS mount,
>>>> and that I missed it in testing.  A workaround is:
>>>> 1. Boot into single user node.
>>>> 2. run: /sbin/service network start
>>>> 3. run: yum -y update filesystem
>>>> If your system emitted the warning, but did not 'bail', it is
>>>> safe to retieve the rpm locally, and to run:
>>>> # rpm -Uvh filesystem*rpm --force
>>>> as there are no scripts in play:
>>>> [herrold at centos-5 ~]$ sudo rpm -q --scripts filesystem
>>>> [herrold at centos-5 ~]$
>>>> The cause is the NFS root_squash being in effect when a NFS
>>>> overmount is on a mountpoint, it seems.  /home happens to
>>>> express it
>>>> It seems Paul and I are the last two users of NFS mounted
>>>> /home left.
>>> I have /home exported and ran the upgrade from this laptop over the network, 
>>> where that directory is mounted and displayed in a folderview under KDE4.  I 
>>> had no problems whatsoever.  Is this the sort of situation you mean?
>>> Anne
>> The way I read it was their /home was mounted on NFS, not just exported.
> I had a problem with /mnt or /media too with a mounted ISO. Had to 
> umount the ISO before filesystem rpm can be updated. This happened when 
> I yum update to RHEL 5.3 recently.

My guess is a scriptlet is failing - quite possibly because an SELinux 
chcon command fails in those conditions. They probably need to change 
the chcon portion of the scriptlet to add a ||: after the command so it 
doesn't bomb out.

Someone should take a look at the spec file, add the ||: after the chcon 
(or whatever it might be) and if it allow the package to update, file a 
bug report upstream so it gets fixed in rhel svn.

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