From: Sam Vilain (sam_at_vilain.net)
Date: Tue 27 Aug 2002 - 13:53:04 BST
Guillaume Plessis <gui_at_moolfreet.com> wrote:
>
> I compiled my kernel with lvm, ext3 and reiserfs (and so on...) and when
> I have to install a new vserver, I create a new logical volume with a
> reiserfs filesystem. Reiserfs and lvm allow me to limit the disk usage
> and to resize the logical volume while I'm working on it. But I've never
> tried to resize it when the attached vserver was up...
>
> Is it possible to do such a thing whitout to crash the vserver? I don't
> know how the kernel manage the dedicaced-to-vserver disk space because
> of the pseudo fstab.
You need to apply the ext2resize patch, then you can use `ext2online'
to resize the filesystems without umounting them.
Beware, however, that you need to create filesystems with at least a
2k blocksize to avoid hitting some ext2 internal limits that will
prevent you from resizing past 256MB boundaries (without use of
`ext2prepare', which requires an unmount).
Ext2resize is at
http://ext2resize.sourceforge.net/
The patch, merged for vserver, is at:
http://sam.vilain.net/vserver/linux-2.4.19-ctx13+ext2resize.patch
--
Sam Vilain, sam_at_vilain.net WWW: http://sam.vilain.net/
7D74 2A09 B2D3 C30F F78E GPG: http://sam.vilain.net/sam.asc
278A A425 30A9 05B5 2F13
The best thing for being sad is to learn something. That is the
only thing that never fails.
T. H. WHITE