[linux-lvm] Resizing a logical volume which is mounted (at /home)
techie.curious at gmail.com
Wed Jan 18 02:45:06 UTC 2012
That's what I did finally. Logged in as root in the console (in fact I
booted into recovery mode from GRUB in order to do this).
Also, to ensure that the underlying file system is also resized
accordingly, I used the -r option.
lvresize -r -L-20G vgme/lvhome
lvresize -r -L+20G vgme/lvroot
That did the trick. Thanks.
On Tue, Jan 17, 2012 at 11:45 PM, Stuart D. Gathman <stuart at bmsi.com> wrote:
> Long ago, Nostradamus foresaw that on Jan 16, Kiran Rao would write:
> Now, I tried the GUI (system-config-lvm) tool to do this. I can click on
>> lvhome and try to resize it. However, the problem is that since I am
>> in as a non-root user, the /home is mounted. Resizing requires one to
>> unmount it, but the unmount operation fails since I am mounted.
>> How do I work around this?
> Log out of GUI
> Switch to text console (on linux try Ctrl-Alt-F3 for vt3)
> Login as root Unmount /home
> resize2fs <device-for-home>
> # WARNING! Make sure lvresize size is >= resize2fs size. If you aren't
> # sure about the units, make lvresize larger than you think you made
> # the filesystem. You can always expand the filesystems again, but
> # you can't undo shrinking the LV too far.
> lvresize <device-for-home>
> mount /home
> Stuart D. Gathman <stuart at bmsi.com>
> Business Management Systems Inc. Phone: 703 591-0911 Fax: 703 591-6154
> "Confutatis maledictis, flammis acribus addictis" - background song for
> a Microsoft sponsored "Where do you want to go from here?" commercial.
> linux-lvm mailing list
> linux-lvm at redhat.com
> read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-**HOWTO/<http://tldp.org/HOWTO/LVM-HOWTO/>
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