Fujitsu Esprimo P7010n dosen't recognize PVE Boot Stick

[Schellimen]

Hi everyone,

I have a Fujitsu Esprimo P7010n and want to install Proxmox Pve 9.x. However, I'm having trouble because my BIOS doesn't recognize the USB drive. The same drive with Windows boot installed is recognized immediately.

For Proxmox, I've tried Rufus, Ventoy, Balena Etcher, and even copying directly to the drive using a Debian laptop. None of them worked for Proxmox.

Out of frustration, I'm about to install the SSD in my Dell OptiPlex and install Proxmox on the hard drive via them, then put the SSD drive back into the Esprimo. The Dell doesn't give me this much trouble with PVE.

On the Fujitsu:
BIOS is up to date
Secure Boot is disabled
There are no other settings I know
The Fujitsu doesn't have a Legacy Mode
Only UEFI boot is accepted

Do you guys have any other ideas?

 

[celemine1gig]

Get an external EFI-Shell binary (for example via "pbatard"'s github repos: https://github.com/pbatard/UEFI-Shell/releases), and put that onto a USB drive into the "/EFI/BOOT/" folder, renamed (the shell bianry) as "bootx64.efi".
See if you can boot that USB drive. It should start directly to the EFI-Shell. From the Shell you should then also be able to boot the Promox stick, if you created it correctly.

 

[Schellimen]

I couldn't get the Boot-Stick working with the Fujitsu. So I installed Deb 12.14 on the hard drive via another PC and switched them back. But EFI Partition wasn't meant to be read ready for the Esprimo. So I had to format the EFI Partition and reinstall the grubloader with the option --removable. After that, the UUID of the EFI-Partition has to be corrected in /etc/fstab.
After all that, I now have a running DEB 12.14 on my Esprimo and can install Proxmox. Could be working with Proxmox instead of DEB 12 as well.

Edit: Proxmox installation was not difficult after all, and is running well.