Joshua Fechner wrote:
What if I don't want to save any of the data on the 20GB drive? Should I
just forget that command? Excuse my noobness but I have never worked with
LVM (except in using DiskDruid). I am comfortable with fdisk. Anyway, do I
fdisk the 80GB and tell fdisk that it's an LVM physical volume, format it
using jfs, and just lvextend? I understand most of that, but what's the jfs
formatting command?
If you didn't want to save any data on the 20GB drive, you would create
one partion on the 80GB drive, set as type LVM (8e). Once the partion
is created, you would add the partion to be a physical volume "pvcreate
<drive partition>". Then you would need to add this physical volume
into your already created volume group "vgextend <volume group> <drive
partition>". From here i'm not exactly sure if you were to add the 80GB
into the logical volume, that when you remove the 20GB it might
automatically copy over the data... if you don't care one way or the
other, I would remove the 20GB drive from the vg, by issuing a "vgreduce
<20GB drive>" then check how many extents are left in the volume group
with "vgdisplay" (look for "free PE / Size") first number is the
extents, second is the size. Then, run "lvextend -l <number of free
extents> <logical volume>". Then you would need to extend your JFS file
system. I don't have any so I don't know the command for this, however,
it probably starts with "jfs" (least thats how ext2/3 [ext2online] and
xfs's [xfs_growfs] tools are named)
I've used <drive partion> as substitues for the actual device, for me
its /dev/sda, and my volume group is VolGroup01, a logical volume would
be /dev/VolGroup01/HOME which is mounted as my /home partion.
Hope that helps,
Mitch
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