Creating an LVM2 Logical Volume for Swap

To add a swap volume group (assuming /dev/VolGroup00/LogVol02 is the swap volume you want to add):

Create the LVM2 logical volume of size 256 MB:

# lvcreate -L 1G -n LogVol02 VolGroup00 

Format the new swap space:

# mkswap /dev/VolGroup00/LogVol02

Add the following entry to the /etc/fstab file:

/dev/VolGroup00/LogVol02   swap     swap    defaults     0 0

Enable the extended logical volume:

# swapon -va

Test that the logical volume has been extended properly:

# cat /proc/swaps # free

swapoff /dev/hda3 mkswap /dev/hda4 swapon /dev/hda4

and edit swap entry in /etc/fstab