Expand logical volume - Ubuntu on Proxmox

Question

After expanding the size of the disk on my Proxmox hypervisor from 8GB to 18GB I am trying to see this new space on my Ubuntu 20.04 VM:

These are the commands I'd run on the VM

# Physical volume is called /dev/sda3
sudo pvs

# resize the Physical Volume (PV)
sudo pvresize /dev/sda3

# root logical volume is
df -h

# expand the logical volume
sudo lvextend -r -l +100%FREE /dev/mapper/ubuntu--vg-ubuntu--lv

# resize my number 3 partition (this gave me 17GB on sda3)
sudo growpart /dev/sda 3

I can see it on the sda3 partition!

Want to see the 18GB on /dev/mapper/ubuntu--vg-ubuntu--lv

https://unix.stackexchange.com/a/583544 - am following these instructions

Any pointers would be great!

Answer 1

https://packetpushers.net/ubuntu-extend-your-default-lvm-space/ was the article which helped me the most.

In summary

# allocate more space on hypervisor

# make the partition see the space (dev/sda3, Resize, Write, quit)
sudo cfdisk

# extend the physical volume from the partition
sudo pvresize /dev/sda3

# extend LV to use up all space from VG
sudo lvextend -l +100%FREE /dev/ubuntu-vg/ubuntu-lv

# resize file system
sudo resize2fs /dev/ubuntu-vg/ubuntu-lv

# check can see the space on filesystem
df -h

Answer 2

Do the Following to Increase your size.

• Increase/resize disque from GUI console
• sudo fdisk -l <-- Look for Linux Partion
• run: growpart /dev/sda 3 (Extend physical drive partition )
• sudo pvresize /dev/sda3 (Instruct LVM that disk size has changed)
• lvdisplay (# Find Entry with starting LV)
• sudo lvextend -l +100%FREE /dev/ubuntu-vg/ubuntu-lv ( # Resize LV)
• resize2fs /dev/ubuntu-vg/ubuntu-lv

PROFIT!