[ale] LVM - Can't add new drive?

[kpirkle at gmail.com (Kent Pirkle)]

Once you've extended the logical volume, you need to extend the
filesystem as well, using either resize2fs or ext2online (to resize
without unmounting).b

If you want to shrink a logical volume, always shrink the filesystem
first, then the lv.


On Sat, 22 Jan 2005 13:00:08 -0500, Nathan J. Underwood
<ale1 at cybertechcafe.net> wrote:
> I have an FC3 box with a single 30GB drive.  When I built the box, I
> knew that I would need more than the 30GB for the /home partition, but
> didn't have a larger drive at the time (had one, but it was in use in
> the box that this box is replacing).  At any rate, I setup the /home
> partition to be an lvm partition.  I'm now to the point of adding the
> new drive to the new machine, but I can't seem to get it to 'see' that
> new space.  I added the drive, and created (using fdisk) added one
> single 160GB lvm (type 8e) partition.  I then used vgextend to add that
> drive to my volume group (VolGroup00, not creative, but that wasn't the
> idea).  Then, I did lvextend -L 100G /dev/VolGroup00/LogVol00, and got
> no errors.  lvdisplay shows that the LVSize is 150.00GB, but df -h only
> shows the following:
> 
> [root at linux-fs2 home]# df -h
> Filesystem            Size  Used Avail Use% Mounted on
> /dev/hda1             9.7G  1.7G  7.5G  19% /
> none                  252M     0  252M   0% /dev/shm
> /dev/mapper/VolGroup00-LogVol00
>                         18G  4.5G   13G  27% /home
> 
> I'm on the howto from tldp
> (http://www.tldp.org/HOWTO/LVM-HOWTO/index.html) now trying to figure
> out what I've missed, but would appreciate any gentle nudges in the
> right direction.
> 
> nathan
> 
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