====== Proxmox - Troubleshooting - VM is Locked (backup) (500) ======

Occasionally the Proxmox backup process gets stuck.

  * It impossible to make any changes to the VM.
  * Error message **VM is locked (backup) (500)** is shown.

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===== To unlock KVM VM =====

<code bash>
qm unlock <VM ID>
</code>

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===== To unlock LXC VM =====

<code bash>
pct unlock <VM ID>
</code>

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