Hi everyone.
As per title my problem is quite simple actually : i have a vm which has a 60G qcow2 and yet with just 30G reported by the vm OS, it's reported as full (99.9% root folder used <-- see screenshots ).
What can i do to solve the problem? 

If you increased the vdisk size you forgot to also increase the partition size in the VM. Expand it in gparted.

 

can i do it directly inside the vm while it's live?

 

Edit: Stupid question, all my IO and changes are blocked so no way to do it. I'll mount an ISO as a second HDD. 

Thank you!

Edited March 9, 20251 yr by lory995

Ehm... i spoke too soon, the disk already appears as expanded? see below...

You have an lvm so there's yet one more step

- Grow vdisk

- Grow lvm

- Grow partition

- Grow filesystem

 

This shows the first 2 were done, the latter 2 probably not, you have to mount the lvm to do those

To solve this i first checked the name of my root folder partition on the disk with :

lory@ubuntuvm1:~$ lsblk
NAME                      MAJ:MIN RM  SIZE RO TYPE MOUNTPOINT
loop0                       7:0    0 63.7M  1 loop /snap/core20/2434
loop1                       7:1    0 55.4M  1 loop /snap/core18/2855
loop2                       7:2    0 63.8M  1 loop /snap/core20/2496
loop3                       7:3    0 91.9M  1 loop /snap/lxd/24061
loop4                       7:4    0 55.4M  1 loop /snap/core18/2846
loop5                       7:5    0 91.9M  1 loop /snap/lxd/29619
loop6                       7:6    0 44.3M  1 loop /snap/snapd/23258
loop7                       7:7    0 44.4M  1 loop /snap/snapd/23545
loop8                       7:8    0   71M  1 loop /snap/prometheus/86
sr0                        11:0    1  528M  0 rom  
vda                       252:0    0   60G  0 disk 
├─vda1                    252:1    0  1.1G  0 part /boot/efi
├─vda2                    252:2    0    2G  0 part /boot
└─vda3                    252:3    0   57G  0 part 
  └─ubuntu--vg-ubuntu--lv 253:0    0 28.5G  0 lvm  /

Then:

lory@ubuntuvm1:~$ sudo lvextend -l +100%FREE /dev/mapper/ubuntu--vg-ubuntu--lv

  Size of logical volume ubuntu-vg/ubuntu-lv changed from 28.47 GiB (7289 extents) to <56.95 GiB (14578 extents).
  Logical volume ubuntu-vg/ubuntu-lv successfully resized.

Then:

lory@ubuntuvm1:~$ sudo resize2fs /dev/mapper/ubuntu--vg-ubuntu--lv

resize2fs 1.45.5 (07-Jan-2020)
Filesystem at /dev/mapper/ubuntu--vg-ubuntu--lv is mounted on /; on-line resizing required
old_desc_blocks = 4, new_desc_blocks = 8
The filesystem on /dev/mapper/ubuntu--vg-ubuntu--lv is now 14927872 (4k) blocks long.

Mission Accomplished:

lory@ubuntuvm1:~$ df -h
Filesystem                         Size  Used Avail Use% Mounted on
udev                               1.9G     0  1.9G   0% /dev
tmpfs                              392M   41M  352M  11% /run
/dev/mapper/ubuntu--vg-ubuntu--lv   56G   28G   26G  52% /

Thank you very much for your help @Kilrah

Edited March 10, 20251 yr by lory995