When creating a VM on Proxmox, sometimes we may underestimate the growth of the data and chose a improper disk size.
This article will teach you how to extend the disk size of your Proxmox VM on Ubuntu Server 22.04. If you are using Ubuntu Desktop 22.04, the procedures will be slightly different. Check out the procedures for Ubuntu 22.04 Desktop.
Step 1: On your Proxmox virtual machine, select the Hard Disk under the Hardware section. Click Disk Action and press the Resize option.
Step 2: Select the disk size you want to increment.
Step 3: Check the partition of / by
sudo lsblk
In my case, it is under partition 3.
Step 4: Extend partition 3 of the disk by
sudo growpart /dev/sda 3
Step 5: Check the filesystem mount on / by
sudo df -h
In my case, it is /dev/mapper/ubuntu–vg-ubuntu–lv.
Step 6: Extend the filesystem by
sudo lvextend -l +100%FREE /dev/mapper/ubuntu--vg-ubuntu--lv
Step 7: Resie the filesystem by
sudo resize2fs /dev/mapper/ubuntu--vg-ubuntu--lv
Step 8: Check the latest disk size by
sudo df -h
Congratulation! You have extended the disk size of your Ubuntu 22.04 server VM successfully!