[rhelv6-list] RHEL 6.3 Released

[Matthias Saou]

*very* interesting to know, thanks for sharing what you've found!

Matthias

On Mon, 25 Jun 2012 15:04:58 +0000
"Feldt, Andrew N." <afeldt at ou.edu> wrote:

> Ian,
> 
> I went to verify the response I originally began for this
> message and used other accounts than my own for testing
> ls -l /home/username (before, I just used mine because
> I first tested with that and found this problem).
> 
> To my surprise, I found that the id mapping works fine
> for all of our user accounts *except* mine!  This
> account has uid and gid of 900.  I have other accounts
> with numbers below this, so it is not some minimum
> cutoff.  I also have other accounts in my group
> (all with gid 900) which map the username properly
> but the gid for 900 is still shown as 'nobody' for
> them (as expected since that is how it is shown for
> my account.
> 
> I discovered a change in nfs-utils which provides the
> new command nfsidmap (see its man page for details).
> I find that, if I run 'nfsidmap -c' after booting
> the problem is resolved.  It appears that there has
> been a change in the way ids are mapped so that they
> are cached. And, something in our boot process must
> access my uid/gid (e.g. my account) before ypbind is
> run and so these get cached as 'nobody'.  However,
> this begs the question of the startup ordering of
> rpcidmapd, ypbind and autofs since I have no
> special script of any sort that is run in between
> rpcidmapd and autofs.  I will try to dig into this
> further, but we should not have to work around this
> caching issue.
> 
> Andy
> 
> On Jun 24, 2012, at 6:57 PM, Ian Mortimer wrote:
> 
> > On Fri, 2012-06-22 at 17:22 +0000, Feldt, Andrew N. wrote:
> > 
> >> Thanks for the info.  Unfortunately, this does not help the
> >> idmapper problem.  And, we had no problem actually automounting
> >> the file systems.  The only problem is in the id mapping.
> > 
> > So is the problem with autofs or with rpcidmapd?  Every time I've
> > seen this, the fix has been: 
> > 
> > umount file_system
> > service rpcidmapd restart
> > mount file_system
> > 
> > 
> > --
> > Ian
> > 
> > _______________________________________________
> > rhelv6-list mailing list
> > rhelv6-list at redhat.com
> > https://www.redhat.com/mailman/listinfo/rhelv6-list
> 
> 
> _______________________________________________
> rhelv6-list mailing list
> rhelv6-list at redhat.com
> https://www.redhat.com/mailman/listinfo/rhelv6-list



-- 
            Matthias Saou                  ██          ██
                                             ██      ██
Web: http://matthias.saou.eu/              ██████████████
Mail/XMPP:  matthias at saou.eu             ████  ██████  ████
                                       ██████████████████████
GPG: 4096R/E755CC63                    ██  ██████████████  ██
     8D91 7E2E F048 9C9C 46AF          ██  ██          ██  ██
     21A9 7A51 7B82 E755 CC63                ████  ████