Show pageOld revisionsBacklinksBack to top This page is read only. You can view the source, but not change it. Ask your administrator if you think this is wrong. ====== Swap Files ====== **General Information** Swap can be increased by resizing partitions, adding new partitions formatted as swap, or by creating swap files. Swap files are useful if you need to utilize existing volumes and cannot resize the swap partition. **Checklist** * Distro(s): Any ---- ===== Create a Swap File with DD ===== Create a block file called "swapfile" in /home/ that is 1GB. <code bash> dd if=/dev/zero of=/home/swapfile bs=1024 count=1048576 </code> Explanation: * bs: write 1024 bytes at a time (or 1K) * count: 1024K * 1024K = 1048576K (or 1GB) ===== Format the File ===== <code bash> mkswap /home/swapfile </code> ===== Enable the Swap ===== <code bash> swapon /home/swapfile </code> ===== Verify Swap is Used ===== <code bash> swapon -s Filename Type Size Used Priority /dev/mapper/vgroot-lvswap partition 4194300 124872 -1 /home/swapfile file 1048572 0 -2 </code> ===== Enable this Swap File After a Reboot ===== Edit /etc/fstab and add: <code bash> /home/swapfile none swap sw 0 0 </code> linux_wiki/swap_files.txt Last modified: 2019/05/25 23:50(external edit)