Re: Resize of LVM PV

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I was afraid someone was going to say that but i was hoping for a more safer method. I think i will take another backup of all my data 1st then do the below suggestion of deleting the /dev/sda2.


On 02/27/2010 09:31 PM, Roberto Ragusa wrote:
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...

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

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