Hi Adrian,
Thanks a lot for providing those Debian-12 installation images!
If people want to try those with QEMU, please use at least QEMU version 8.
Furthermore, the SeaBIOS-hppa firmware v6 which comes with QEMU-8 has a bug
and isn't able to boot the Debian-12 CD images.
Instead use qemu git head, or download this precompiled firmware:
http://backup.parisc-linux.org/qemu/hppa-firmware.img
and put it into the pc-bios directory (or in the directory where you run qemu).
Helge