[KLUG Members] How do I resize a root LV?

[Bob Kanaley]

Hey guys,

I want to shrink a LV mounted as root. I have no problems resizing non-root
LV's, but to resize the root fs and LV the root file system needs to be
unmounted. I tried to do this in single user mode, but no dice. Root
partition is still in use.

When I boot with a BBC or Knoppix CD, the LV info on the hard disk is never
read. The kernel loaded from the CD just sees the hard disk as having a
small /boot partition and a bunch of unallocated type 83 sectors. How do I
get the kernel loaded from the CD to recognize the LVM structure on the hard
disk so I can resize the unmounted root LV?

TIA,

Bob

Robert V. Kanaley
Manager Information Systems
Agdia, Inc.
rvk@agdia.com
http://www.agdia.com