Resize LXC Disk to max

[robetus]

Is there an easy way to resize an LXC containers disk to the max size? I see outputs like:

Insufficient free space: 25600 extents needed, but only 1541 available

What are these numbers? I tried kilobytes and bytes but it didn't make sense. If I knew the available number I could probably get it close. It would be great if you could just resize the disk to max available size, I don't think there is a way to do it in the proxmox GUI. Using v7.3.3.

 

[robetus]

I see that on a KVM VM it's the same numbers. Any advice would be appreciated.

 

[robetus]

I kinda figured out a way to do this but it's not exact. The default extent size in a proxmox installation is 4mb so it's 4mb x the number extents available to give you an approximate total volume in gb or tb. This exact number will not work in the resize, you'll need to take off around 100gb for it work.

Example: 4MB x 923141 available extents = 3692.564gb but only 3606gb worked to resize the disk.