/swap.img

• swapon

 swapon -s
 Filename				Type		Size	Used	Priority
 /swap.img                              file    	2023420	104312	-2

/etc/fstab
/swap.img	none	swap	sw	0	0

Failed deactivating swap. /swap.img

swapoff -a (disable all swaps from /proc/swaps)
truncate -s 500MB /swap.img

Related terms

• /etc/fstab
• No space left on device

See also

• Swap, swapon, swapoff, mkswap, swaplabel, free,sar -r, sar -S, sar -W, vmstat, vm.swappiness, /proc/swaps, /etc/fstab, Add a swap disk, systemd.swap