Make a new disk available in Ubuntu on AWS or Azure

To make a new disk you just added to the Ubuntu device, please go through the following steps –

Check whats the /dev path of the disk. On terminal, run-

lsblk

NAME        MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
loop0         7:0    0  97M  1 loop /snap/core/9289
loop1         7:1    0  18M  1 loop /snap/amazon-ssm-agent/1566
nvme0n1     259:0    0   1T  0 disk 
nvme1n1     259:1    0  10G  0 disk 

You would have got a result as above. ( In Azure the disk names are the usual sda, sdb etc, unlike the nvme* in AWS.)

In this case, the disk I wanted add is the 1 TB disk, which is /dev/nvme0n1

Format the disk with a new compatible filesystem (XFS).

sudo mkfs -t xfs /dev/nvme0n1

Wait for the file-system creation to finish.

sudo mkdir /data
sudo mount /dev/nvme0n1 /data
sudo cp /etc/fstab /etc/fstab.orig
sudo blkid

From the output of the last command, find the UUID of your disk

sudo vim /etc/fstab

Append the line –

UUID=[your disk's UUID]  /data  xfs  defaults,nofail  0  2

Note that in the above replace your disk’s UUID without the square brackets, and save the file.

sudo umount /data
sudo mount -a
df -h

Verify that /data is listed as a disk in the last command. If not, please check the /etc/fstab file, apply correction of UUID, spaces etc, and repeat the above test block again.

Kj

Kj [/.] Sreekumar programs computers as a hobby and profession. Into programming from his school days, Sree uses Codemarvels to key in facts and fixes he finds interesting while working on different projects. Some of the articles here give away a few shades of his philosophical leanings too.

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