Error /boot/ USB installation Proxmox 9.1

[uniketou]

Hello all,

I've build a brand new server and I want to install Proxmox 9.1.

I've prepared the USB stick but I got the error below : error : file '/boot/' not found



=> ISO Checksum is OK (downloaded twice)
=> USB configured with : Rufus (dd mode) or Etcher : same issue
=> tested with PROXMOX 9.0 : same issue
=> tested 2 USB stick : same issue
=> tested on different USB port : same issue
=> Secure Boot disabled

Installation is done via IPMI (no monitor connected).

Motherboard : AsRock Rack ROMED8-2T
RAM : 128Go ECC
CPU : EPYC 7713
Graphic : AMD RX 9700XT


Have you any idea ?


Below some BIOS screen :

- 3 SSDs



- 2 Nvme :



- IOMMU Enabled :



- Boot menu (tried with 2 differents USB stick)