mkswap

mkswap set up a Linux swap area and it is included on util-linux package.

• https://man7.org/linux/man-pages/man8/mkswap.8.html

mkswap /dev/nvme5n1
mkswap -f /dev/nvme5n1

Setting up swapspace version 1, size = 30 GiB (32212250624 bytes)
no label, UUID=2c828d0e-4820-49a6-a9a9-af0facc12345

mkswap /path/to/yourfile
mkswap: /path/to/yourfile: insecure permissions 0644, fix with: chmod 0600 path/to/yourfile
Setting up swapspace version 1, size = 1024 MiB (1073737728 bytes)
no label, UUID=8afa8a12-bcea-4ce1-8848-dc19086d49a3

Errors

mkswap: error: swap area needs to be at least 40 KiB
Solution: fallocate -l

Related

• /etc/fstab
• swapon
• mkfs
• Add a swap disk

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