[linux-lvm] Reclaim free space

[Ian Burrell <ib onsitetech com>]

How do I reclaim the free space when a logical volume is reduced?  I am 
using a volume group on one physical volume and three logical volumes.

I wanted to split off /usr/local and give it some space from reducing 
another volume.  I shrank the existing logical volume with "ext2fsadm". 
 After, the volume group had the same amount of free space as before. 
I went ahead and created the new LV in that free space but would like to 
make it bigger.  Now "vgdisplay" shows the volume group as being 
completely full.  Except the allocated space for the logical volumes are 
less than the total space.

 - Ian