5.3.2. Removing an LVM2 Logical Volume for Swap

5.3.2. Removing an LVM2 Logical Volume for Swap

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):

  1. Disable swapping for the associated logical volume:

    # swapoff -v /dev/VolGroup00/LogVol02
    
  2. Remove the LVM2 logical volume of size 512 MB:

    # lvm lvremove /dev/VolGroup00/LogVol02
    
  3. Remove the following entry from the /etc/fstab file:

    /dev/VolGroup00/LogVol02 swap swap defaults 0 0
    
  4. Test that the logical volume has been extended properly:

    # cat /proc/swaps # free
    

Note: This documentation is provided {and copyrighted} by Red Hat®, Inc. and is released via the Open Publication License. The copyright holder has added the further requirement that Distribution of substantively modified versions of this document is prohibited without the explicit permission of the copyright holder. The CentOS project redistributes these original works (in their unmodified form) as a reference for CentOS-5 because CentOS-5 is built from publicly available, open source SRPMS. The documentation is unmodified to be compliant with upstream distribution policy. Neither CentOS-5 nor the CentOS Project are in any way affiliated with or sponsored by Red Hat®, Inc.