[CentOS] Re: changing swap size

Stewart Walker spake the following on 3/28/2007 2:29 PM:

Is it possible to change the swap size with out re-installing the system?

Looking at the dd command but don't really know what to expect.

Many thanks for your help

If you have the space available, you can add, remove, or change the swap on demand. If you have unpartitioned space you could add a partition as large as you want, with type 82 (linux swap), use mkswap to format it, and swapon the partition. Then you could swapoff the old one and use the space for something else. Then adjust /etc/fstab to reflect the new info. You might be able to resize a swap partition from a rescue disk with parted.