Remove Proxmox VM Disk

Proxmox displays the following error message in WebGui:

lvremove ‘pve/vm-12345-disk-0’ error: Logical volume pve/vm-12345-disk-0 in use. (500)

The hard disk cannot be removed from Proxmox.

1. Make sure that the DISK is really not used by the machine.
2. lvremove -f /dev/pve/vm-12345-disk-0 (-f stands for Force)

If it didn’t work, we kill the processes accessing it:

1. fuser -kuc pve/vm-12345-disk-0
   /dev/dm-11: 9632(root)
2. kill -9 9632
3. lvremove -f /dev/pve/vm-177-disk-0
4. qm rescan

With qm rescan, we scan all available virtual hard disks again for security reasons