SWAP File
The following commands illustrate how to add a swap file of 2GB to a RedHat system:
# dd if=/dev/zero of=/temp_swap bs=1024 count=2097152
# mkswap /temp_swap
# swapon /temp_swap
To enable it at boot time, edit /etc/fstab to include:
/temp_swap swap swap defaults 0 0
After adding the new swap file and enabling it, verify it is enabled by viewing the output of the
command:
# free -mo