[linux-lvm] Re: Extending the Root Volume with LVM
Chris Osicki
osk at admin.swisscom-mobile.ch
Tue Feb 20 10:45:18 UTC 2007
Clark
Have a look at ext2online. It comes with RHEL 4.
Regards,
Chris
On Mon, 12 Feb 2007 12:35:45 -0800
Duane Clark <dclark at akamail.com> wrote:
> Sean McGlynn wrote:
> > I am working with RHEL 4 Update 4. When initially installing the OS I
> > allowed the installation to automatically partition the disk, and it
> > used LVM to create a logical volume to mount the root file system. The
> > only other logical volume it created was for the swap file.
> >
> > Now, as an experiment, I am attempting to extend the volume group and
> > logical volume on which root is mounted. Everything appeared to
> > be going smoothly (extending the VG, extending the LV, doing a vgchange,
> > and then a lvm lvchange), but I am now at the point where I want to run
> > e2fsck to check the file system and resize2fs to resize the files system
> > to realize the added space, and I can't do either because the volume is
> > mounted, and cannot be unmounted.
> >
> > I've read a few suggestions such as using the installation media to go
> > in in rescue mode, but nothing seems to do the trick.
>
> Why, what problems did you run into? When rescue mode asked you whether
> you wanted it to find and mount the root partitions, did you select
> "skip"? Here are step by step instructions on how I reduced the LVM (on
> FC4), including e2fsck and resize2fs.
>
> https://www.redhat.com/archives/linux-lvm/2006-August/msg00081.html
>
> > I also read
> > something that said that you cannot extend the root volume, and that you
> > shouldn't have to. This appears to be more accurate than anything else
> > I've read.
>
> Definitely not true.
>
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> read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/
>
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