Gary Stainburn wrote:
On Monday 13 June 2005 4:33 pm, Paul Howarth wrote:
You can use ext2online to resize a mounted ext2/ext3 filesystem, so a
rescue CD might not be needed (ext2online can't always resize a
partition but it'll tell you if it can't).
The procedure basically involves using pvcreate to create LVM
physical volumes on the new disks, vgextend to add those physical
volumes to VolGroup00 and then lvextend to make logical volume
/dev/VolGroup00/LogVol00 bigger. You can then resize the root
filesystem using either ext2online (if it works), or resize2fs from
rescue mode if ext2online refuses to cooperate.
See the man pages for the various commands to see how they work. See
also the Linux LVM HOWTO:
http://www.tldp.org/HOWTO/LVM-HOWTO/
Paul.
I've tried to carry out the steps above bit came unstuck at the lvextend
stage. Anyone see what I'm doing wrong? Below is the session I was
running.
Gary
[root@larry1 ~]# fdisk -l /dev/hda
Disk /dev/hda: 41.1 GB, 41174138880 bytes
255 heads, 63 sectors/track, 5005 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Device Boot Start End Blocks Id System
/dev/hda1 * 1 13 104391 83 Linux
/dev/hda2 14 5005 40098240 8e Linux LVM
[root@larry1 ~]# fdisk -l /dev/hdb
Disk /dev/hdb: 41.1 GB, 41110142976 bytes
16 heads, 63 sectors/track, 79656 cylinders
Units = cylinders of 1008 * 512 = 516096 bytes
Device Boot Start End Blocks Id System
[root@larry1 ~]# df
Filesystem 1K-blocks Used Available Use% Mounted on
/dev/mapper/VolGroup00-LogVol00
38639072 2676536 33999736 8% /
/dev/hda1 101086 12308 83559 13% /boot
none 192376 0 192376 0% /dev/shm
[root@larry1 ~]# pvcreate /dev/hdb
Physical volume "/dev/hdb" successfully created
[root@larry1 ~]# vgextend VolGroup00 /dev/hdb
Volume group "VolGroup00" successfully extended
[root@larry1 ~]# lvextend -L +40G /dev/mapper/VolGroup00-LogVol00
/dev/hdb
Volume group mapper doesn't exist
Try this instead:
# lvextend -L +40G /dev/VolGroup00/LogVol00
Paul.
