swapfile configuration

This note was created on 2023-03-14
This note was last edited on 2023-03-14

=== Create and enable the swapfile ===
1. Create "/swapfile":
   # dd if=/dev/zero of=/swapfile count=8192 bs=1M
2. Set permissions:
   # chmod 0600 /swapfile
3. Mark the new file as swap space:
   # mkswap -L swap /swapfile
4. Enable the swap file:
   # swapon /swapfile

=== Make the changes permanent ===
1. Create fstab backup:
   # sudo cp /etc/fstab /etc/fstab.bak
2. Add the following line to "/etc/fstab":
   ~~~
   /swapfile swap swap defaults 0 0 
   ~~~
3. Done!