I did several proxmox installations on various hardware. But this one's puzzling me. It's a quite simple setup: 32 GB RAM, ZFS-RAID on a six core CPU. Onboard are two Intel e1000e NICs. Under a Debian live installation (bullseye) they work fine. But the proxmox ISO has no luck. In Debug installation mode, the NICs show traffic until I hit CRTL-D the first time (after "found Proxmox VE ISO"). Then both NICs go off. Is the ISO missing some drivers, which are included in a standard Debian ISO? "lspci" shows them as network devices. "ip a" shows them as DOWN.