Cannot boot PVE 6 on a IBM server

[decibel83]

Hi,
I installed PVE 6 with ZFS on two SSD drives on an IBM x3650 M3 server with a H200 SAS controller cross-flashed to IT mode.
The installation process ended correctly but after the reboot the server does not boot, nor in UEFI mode nor in legacy mode.
If the USB drive is plugged into the server only can boot on it in legacy mode.

Could you help me please?
Thanks!

 

[Stoiko Ivanov]

Is the HBA selected as the first boot device?
Can the server boot from an HBA ? (certain HP-servers cannot boot from the internal card if it is in HBA-mode)

I hope this helps!