How to make a Linux Swap partition (RHEL7)?

Hi! I am Rohit.

In this post I am going to teach you how to create a Linux Swap partition. Linux Swap makes an extra space. It is same as creating a normal partition, a little different. I am using a virtual machine. You can list your blocks by the command ‘lsblk’. Now, let’s start!

1 First create a partition with fdisk.

2 Now type t to select the type and the partition number which would be asked after you type t. Because I have only created this partition it would be automatically selected. You can type L to list all the codes. Let’s type 82 to change the partition to Linux Swap. Type w to alter the partition table. Also type partprobe /dev/vdb.

3 Type mkswap /dev/vdb1 to format our swap partition. Now copy your partition’s UUID. You can use the blkid command to find out your UUID. Next, type vim /etc/fstab to edit the file.

4 Move the cursor to the first UUID and type o to insert. Paste the UUID of the swap partition. Type swap, put a space and type swap again. Then type defaults and put a space, enter a 0. Now put a space and then type 0. Press Esc and type :wq! to save.

5 Type swapon /dev/vdb1. Type lsblk to check.

Hope you all understood. If there are any doubts please comment and if you liked this please share. Bye.

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