Re: [Xen-users] growing file systems

[Brock Palen <brockp@xxxxxxxxx>]

sfdisk --re-read /dev/hdb

gave me this:
sfdisk: cannot open /dev/hdb for reading

I was forced to reboot the domU and rerun xfs_growfs and it worked  
fine.  Though this is much less than optimal. and half the reason i  
use xfs :(
anyone else know of a reliable live filesystem grower ?

Brock Palen
Center for Advanced Computing
brockp@xxxxxxxxx
(734)936-1985


On Jun 29, 2006, at 11:01 AM, Jan Philipp Giel wrote:

> Am Donnerstag 29 Juni 2006 16:34 schrieb Brock Palen:
> > Has anyone seen a problem with growing file systems in domU's with
> > xfs?  I use LVM for my volumes.  i grew the volume in dom0 with
> > 'lvextend -L +10G /dev/noraid/bacdumps'
> >
> > in the domU i run  'xfs_growfs /path/to/mounted/fs'
> >
> > lvs in dom0 says the volume is larger.
> > bacdumps    noraid -wi-ao  25.00G
> >
> > but xfs_growfs prints out info of the old size (15 GB)
> >
> > bsize=4096   blocks=3932160
> >
> > and 'df' in the domU shows the same results only 15GB,   i dont have
> > this problem on non xen machines.  Any thoughts ?
> Could it be that your domU kernel has to re-read the partition  
> table? Maybe
> the domU kernel does not know that you have resized the "partition"  
> but the
> dom0 kernel does (because you used lvextend in there).
>
> sfdisk --re-read
>
> should make your kernel reread the partition table (if you have  
> sfdisk...).
> Regards
> Philipp
>
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