-*- mode: outline; coding: utf-8; -*-

* Enable swap in file.

Create large file and set up a Linux swap area, enable file for paging and swapping:

  $ dd if=/dev/zero of=/swapfile bs=1024 count=524288
  $ mkswap -v1 /swapfile
  $ sudo swapon /swapfile
  $ sync

Insure that all fine:

  $ dmesg | tail
 ...
  $ cat /proc/swaps
 ...

Add line to /etc/fstab:
/swapfile   swap        swap    defaults    0   0