Digging through some HP docs, CD-ROM boot was only possible on 8.0 and up.
Does HPDrive simulate a 9144 or 45?
On 7/6/18 4:53 PM, Rico Pajarola via cctalk wrote:
Not what you asked for, but I successfully used
HPDrive to emulate HP-IB
devices (disk and tapes). I never had any luck with physical tape drives.
I've only ever seen HP-UX 5.1 on floppies. To install something more
modern, it would be much easier to boot it over the network.