LVM Resize

[Frank.Pawlik]

Hello.

I have a LVM for KVM guests (http://pve.proxmox.com/wiki/Intel_Modular_Server).
I resized one disks (bigger).
Now I did a resize2fs inside the guest (Debian lenny).
resize2fs /dev/vdc1
resize2fs 1.41.3 (12-Oct-2008)
Das Dateisystem ist schon 20970841 Blöcke groß. Nichts zu tun!

'Nothing to do!' it told.
What went wrong?

 

[l.mierzwa]

Did You resize guest partition?

 

[mmenaz]

I've the feeling that you have to resize the partition too (fdisk -l to show their current dimension). Boot with rescuecd, gparted and enlarge the partition. Then enlarge the file system (I would suggest to do from rescuecd boot, I don't know if your fs accepts resizes if mounted, but I'm not a guru on this subject).

 

[Frank.Pawlik]

Ok. I have to resize guest partition too.
Is there a method to do it on a running system?
The filesystem is ext3.
If not I have to use partedmagic.

 

[l.mierzwa]

Ok. I have to resize guest partition too.
Is there a method to do it on a running system?
The filesystem is ext3.
If not I have to use partedmagic.

IMHO don't think that this is possible without lvm on guest. You can edit partition table to extend it but linux won't notice changes until reboot.

 

[jschellhaass]

lvextend supports a resizefs option. see lvextend -h

jeff

 

[udo]

IMHO don't think that this is possible without lvm on guest. You can edit partition table to extend it but linux won't notice changes until reboot.

Hi,
with "partx /dev/vdc" the kernel should update the partition-table, and then should an online extension work. But i haven't done before.

Udo

 

[Frank.Pawlik]

PartedMagic 5.9 did a perfect job.

partx is an interesting option.
I will try it someday.