[Samba] Re: quota on xfs on lvm doesn't work(?)

James Peach jorgar at gmail.com
Tue Apr 25 04:17:55 GMT 2006

On 4/24/06, Christoph Peus <cp at uni-wh.de> wrote:
> James Peach wrote:
> > There's a couple of more obvious ways that trying to get quota information
> > can fail.
> >
> > The first is in the XFS check. This requires either that the caller be
> > root or that either
> >
> >     1. the caller is checking a user quota and the caller's effective
> >        UID is the same as the UID for the user quota of interest
> >
> >     or 2. the caller is interested in a group quota and is a member of
> >         of the group of interest
> >
> > Now, I would expect that if this check failed on the on a LVM device,
> > it would also fail on a regular block device, given that the samba
> > configuration is consistent. You can test this by adding "debug pid =
> > yes" to smb.conf and checking the log messages to see whether smbd would
> > pass the above checks.
> >
> > The other early check is done by the selinux code. This checks the
> > "quotaget" capability (is this the right terminology?). I think this is
> > more interesting, because I'm guessing that selinux could be configured
> > to allow quotaget on one block device but not on another ...
> >
> > Am I on the right track?
> Hmmm... does it matter that selinux support isn't activated in my kernel?

probably :)

> But to make it short: it turns out now that the problem disappears, when
> I use the "real" device of the logical volume (/dev/mapper/export-lvol0)
> in the mount command instead of the symbolic link /dev/export/lvol0 ->
> /dev/mapper/export-lvol0

yay! nice work!

> :-)
> Is this a bug or a feature? Looks like a bug to me...

sure smells like a bug (somewhere) to me ...

James Peach | jorgar at gmail.com

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