Resize of LVM PV

[Roberto Ragusa]

Frederick Abrams wrote:

> 1) Rebooted with Fedora 12 in Rescue mode
> 2) e2fsck /dev/mapper/vg_fa-lv_root
> 3) resize2fs /dev/mapper/vg_fa-lv_root 275G
> 4) lvresize -L 250G /dev/vg_fa-lv_root

Hmmm, 275G filesystem inside a 250G lv??? You should have done the reverse...
Danger.

> 5) pvresize --setphysicalvolumesize 300G /dev/sda2

That's ok.

>    Device Boot      Start         End      Blocks   Id  System
> /dev/sda1   *           1          26      204800   83  Linux
> Partition 1 does not end on cylinder boundary.
> /dev/sda2              26       60801   488179201   8e  Linux LVM

Now you have to be brave.
You should remove sda2 and recreate it with a smaller size (for example 310G).
The content should not be lost, as the metadata is at the start of the partition.
(refer another mail of mine from 23/8/2008 "lvm resizing and shifting" on this issue)

If you are still alive, you then:
- enlarge the pv to 310 (try to avoid manual specification, always better autodetect).
- enlarge the lv if you want
- enlarge the filesystem if you want

-- 
   Roberto Ragusa    mail at robertoragusa.it