LVM - How to resize a volume group?

[Brian Tillman]

Dejan

Instead of making a new partition on disk, why not create another  
logical volume? You can shrink one of the two logical volumes {root |  
home} and create a new LV for your new partition. This will allow you  
more flexibility in the future with resizing, and will be worlds  
easier than shrinking your LV's VG's, PV, the partition, and then  
writing a new one.

If you're using EXT2/3 for your /home, you can shrink the LV like this:

# umount /home
# e2fsadm -L-1G /dev/VolGroup00/home
# mount /home

See the e2fsadm man page for more information.

See the lvcreate manpage for instructions on creating the new volume.

Brian

On May 25, 2008, at 9:51 AM, Dejan Čabrilo wrote:

>> Can you be more clean on your goal, I understand you'd like to  
>> create a new
>> filesystem?
>
> I would like to create a new primary partition. I currently have sda1
> (/boot) and sda2 (lvm), and would like to shrink sda2.
>
>> Please provide output of the following two commands:
>> vgdisplay
>> lvdisplay
>
> Attached.
>
> Thanks,
> Dejan
>
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