[SOLVED] Reset passwords in a VM

[jlgarnier]

Dear Community,

I'm facing an issue with an Ubuntu VM, which I didn't use for a long time: the password I carefully stored in my password manager is rejected by the system. I can't SSH into the VM as the SSH server has probably not been installed and I obviously can't use the "boot in recovery mode" trick as Proxmox doesn't give access to this step when booting the VM.

Some applications are installed on this VM, so I'd prefer not delete/recreate it: does anyone know a procedure to reset a session password in Ubuntu?

Thanks in advance for any help!

 

[gfngfn256]

and I obviously can't use the "boot in recovery mode" trick as Proxmox doesn't give access to this step when booting the VM

Why not add a recovery/live media ISO cd rom to the VM & then you could boot it up with that.

 

[leesteken]

This is in no way Proxmox specific so any guide for Ubuntu or Linux will work. Like init=/bin/bash or boot the Ubuntu installer ISO and chroot into your installation. Anything that works for a physical machine works for a virtual machine.

 

[cheiss]

Hi,

if the VM has the qemu-guest-agent correctly installed inside, you can also use the qm guest passwd <vmid> <username> command to run passwd inside the VM directly.

 

[jlgarnier]

Hi,

if the VM has the qemu-guest-agent correctly installed inside, you can also use the qm guest passwd <vmid> <username> command to run passwd inside the VM directly.

Great, this did the trick! Thanks a lot to all for your help!