I want to extend size of my lv /var/ partition.
But first i had to resize (shrink) root lv partition.
While in live CD i did:
lvreduce -L 25G -r /dev/vg_centos/lv_root
Now i want extend lv_var with lvextend -L -r .
But i don't know how to extend to maximum available size.
Before mu lv_root partition was 31G and some megs, but i don't remember how much exactly.
I don't want left free unused space in pvs.