This is more of Resize LVM I have tested this on CentOS 5.5. Since this is root partition modification, I’ll recommend to keep config backup before proceeding. create new partition (partition id should be 8e Linux LVM) ADD PHYSICAL VOLUME pvcreate /dev/new_partition Verify new physical volume pvdisplay Or pvscan Extend existing VOLUME GROUP vgextend VolGroup00 [...]