I encountered the same issue. I freshly installed Proxmox 8.2 via Ventoy, but it would get stuck at loading the init ramdisk for no apparent reason.
SPEC:
5900X
128GB @ 3200 RAM
GTX 1066
2x M.2 + 1x HDD
ASUS TUF GAMING B550M-PLUS
I tried to diagnose if there was a hardware issue by...