Reducing Swap on an LVM2 Logical Volume

To reduce an LVM2 swap logical volume (assuming /dev/VolGroup00/LogVol01 is the volume you want to extend): Replace /dev/VolGroup00/LogVol01 with your HD partition.

1. Disable swapping for the associated logical volume:
   

   # swapoff -v /dev/VolGroup00/LogVol01

2. Reduce the LVM2 logical volume by 512 MB:
   

   # lvm lvreduce /dev/VolGroup00/LogVol01 -L -512M

3. Format the new swap space:
   

   # mkswap /dev/VolGroup00/LogVol01

4. Enable the extended logical volume:
   

   # swapon -va

5. Test that the logical volume has been reduced properly:
   

   # cat /proc/swaps or # free

   !Enjoy

   Kuldeep Sharma