The swap logical volume cannot be in use (no system locks or processes on the volume). The easiest way to achieve this it to boot your system in rescue mode. Refer to for instructions on booting into rescue mode. When prompted to mount the file system, select Skip.
To remove a swap volume group (assuming /dev/VolGroup00/LogVol02 is the swap volume you want to remove, replace /dev/VolGroup00/LogVol02 with your HD partition):
-
Disable swapping for the associated logical volume:
# swapoff -v /dev/VolGroup00/LogVol02 -
Remove the LVM2 logical volume of size 512 MB:
# lvm lvremove /dev/VolGroup00/LogVol02 -
Remove the following entry from the
/etc/fstabfile:/dev/VolGroup00/LogVol02 swap swap defaults 0 0 -
Test that the logical volume has been extended properly:
# cat /proc/swaps or # free