Become a superuser (root) by typing:
% su Password: root-password |
Create a file in a selected directory to add swap space by typing:
dd if=/dev/zero of=/dir/myswapfile bs=1024 count=number_blocks_needed |
where dir is a directory in which you have permission to add swap space. The myswapfile is the name of the swap file you are creating. The number_blocks_needed is an amount of 1024-byte blocks you want to create. See the dd(1) man page for more information.
Verify that the file was created by typing:
ls -l /dir/myswapfile |
The new file appears in the directory.
Initialize the new swap area by typing:
mkswap /dir/myswapfile |
See the mkswap(8) man page for more detailed information.
Run the swapon command to enable the new swap space for paging and swapping by typing the following:
swapon -a /dir/myswapfile |
Verify that the extra swap space was added by typing:
swapon -s |
The output shows the allocated swap space.