[SOLVED] PBS - Error: no password input mechanism available (500)

[yaya]

PVE version: 9.1.5
PBS version: 4.1.2

SOLVED: Key problem...

Hello,
For context, I just did a complete reinstallation of my PVE due to a change of servers and disks.
When trying to restore my VMs via PBS with the PVE WebUI, I get the following error:
proxmox-backup-client failed: Error: no password input mechanism available (500)
What I tried:

• Check the encryption key: Done, If I try to change it, I get a key error.
• Check the password: Done, If I put something random, I get a 401 error.

If you need any further information, please don't hesitate to ask!

Thank you.

 

[Sviat]

Hi @yaya,

most likely it happens because your backups are encrypted, and your freshly reinstalled PVE doesn’t have the old encryption key.
Theoretically it can be fixed by the original encryption key from the old server that can be added the new PVE.
Could you provide some details about how you fixed it?
It will be helpful for someone who have or will have the similar issue.