Import secure boot certificate used by Proxmox

Hello, for some reason the mainboard I'm using is not shipping any secure boot certificates by default.
There is an option to install them but unfortunately is not doing anything.
This was working in the past but bricked with the latest bios update.
As a result Proxmox is not booting when secure boot is enabled.
The UEFI setup provides the option to manually import certificates so I'm wondering where to get the correct one used by Proxmox.
Thank you.

Solved:
Microsoft certificates are...

Read more