Extending a logical volume using reiserfs
Just recording this so I can find it again!
nandu:~ # lvextend -L +2G /dev/basevg/opt
Extending logical volume opt to 5.00 GB
Logical volume opt successfully resized
nandu:~ # resize_reiserfs /dev/basevg/opt
resize_reiserfs 3.6.19 (2003 www.namesys.com)
resize_reiserfs: On-line resizing finished successfully.
nandu:~ #