[HELP] Issue after an upgrade from v8.1.10 on a HP Gen8 micro server

[Fryl]

Hi,

It was a good morning and then i have decided to update/upgrade my proxmox ... bad idea it seems...

I was currently on Proxmox v8.1.10 on HP Proliant Gen8 microserver (16GB, Intel processor 1265v2)
Just click to Refresh and next Upgrade button from menu Updates on my pve1 node

Everything was working well (before and even on upgrading process)
Advice to reboot
=> ok I reboot

Now, Proxmox is not booting anymore...
I get an error message that i don't understand

To help please find in attachment 2 screen captures:
- HPE ILO screen capture
- old webpage (connection error since upgrade as proxmox in not booting) that was keep into my browser

Could you please help me to solve this issue ?
Thanks a lot for your helps and your answers.

 

[Fryl]

As Gen8 micro server is not able to boot directly on first disk (small SSD), i have an usb key plugged with Grub to chain the boot to SSD partition (where proxmox setup is done)
It seems that this usb key grub is still working when i see this screen capture on ILO

Where can i search to solve this proxmox booting?