How to add swap partition after installtion of linux

Say you have installed linux without a swap partition , now you need a swap partition , how can you do it .

first confirm  that you have a swap partition or not

open terminal type " sudo swapon -s "

if you dont have swap partition it will seen like this

Filename    Type  Size Used Priority

now type "sudo fallocate -l 2000m /mnt/swap_borah.swap"

we are allocation 2gb of space for swaping



then type "sudo chmod 600 /mnt/swap_borah.swap"

we are giving read and right permission to owner

now type "sudo swapon /mnt/swap_borah.swap"

now we need to record in  fstab

type "sudo gedit /etc/fstab"


just make entry same as follow

/mnt/swap_borah.swap none swap sw 0 0

dats all restart yur pc type

"sudo shutdown -r now"


now check "sudo swapon -s  "

we will get a pic as bellow

swap patition in ubuntu

swap partition in linux after installtion

swap partition for linux