Hi, i now tested on real hardware: AMD 4x2.4 MHz five years old, Award BIOS 6.00 with amd64 mini.iso on USB stick and DVD+RW.
Same effect as with qemu. It makes no progress after saying "EHDD" or "ETCD". Since it cannot get any worse, i replaced /isolinux.bin of amd64 mini.iso by /isolinux/isolinux.bin out of debian-8.1.0-amd64-netinst.iso. qemu-system-x86_64 -enable-kvm -m 512 -cdrom amd64_mini_ts.iso -boot d boots to the grey-cyan-swirly graphics screen "Debian GNU/Linux installer boot menu" So the problem is in the boot image binary. Have a nice day :) Thomas