Let us learn how to Unlock locked VM proxmox with the support of our Proxmox support services at Bobcares.

Error: VM is locked Unlock it

The “VM is locked” issue is the most typical reason for wanting to kill a VM lock. This error has several versions, including:

• Error: VM is locked (backup)
• Error: VM is locked (snapshot)
• Error: VM is locked (clone)

This can help us decide whether or not to unlock the door.

For example, if the backup operation is still continuing, we should probably not clear the lock and just let the backup process finish.

can’t lock file ‘/var/lock/qemu-server/lock-VMID.conf’ – got timeout

Another typical problem that occurs when we attempt to shut down/stop a virtual machine or when qm unlock fails (see below).

Unlock locked VM proxmox

There are two methods for removing a lock from a Proxmox VM: 1) use the qm unlock command, or 2) manually delete the lock.

1. qm unlock:

   When it comes to unlocking a Proxmox VM, qm unlock should be the first option.

   To begin, locate the VM ID (the number adjacent to the VM in the Proxmox GUI). If we are not using the WebGUI, we may get a list of the VM IDs by typing:

   cat /etc/pve/.vmlist

   Unlock the VM/remove the lock using:

   qm unlock

   This may not always be the case, and the command may fail with:

   trying to acquire lock...
can't lock file '/var/lock/qemu-server/lock-.conf' - got timeout

   In this case we have to manaually delete the the lock.
2. Manually Deleting the Lock:

   We may resolve the error message “can’t lock file ‘/var/lock/qemu-server/lock-VMID.conf’ – got timeout” by manually removing the lock at that place.

   To put it simply, we may execute the following command:

   rm /var/lock/qemu-server/lock-VMID.conf


This is the last resort to unlock the locked VM Proxmox.

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Conclusion

To sum up we have now seen how to Unlock locked VM proxmox with the support of our tech support team.