I'll give that a try, thanks Chris. The hardware supports multiple drives just fine (one per controller). The power supply shuts down with three hard drives, though, the surge current is too high. I could work around that if I ever needed two. Two drives is not a problem, and my RSTS code supports this.
paul > On Jan 14, 2021, at 1:25 PM, Chris Zach via cctalk <cctalk@classiccmp.org> > wrote: > > Hm. I remember that POS 2.0 and above would just format the hard disk and go > during the install. Likewise I don't know if you can have multiple hard disks > in P/OS so that's a pain in the tail. > > Boot from floppies and just init the raw disk. > > C > > > On 1/14/2021 11:39 AM, Paul Koning via cctalk wrote: >> I'm wondering how to do hard drive formatting, which is likely to be needed >> when working with emulated disks in David Gesswein's MFM emulator. >> As far as I can tell, RT-11 can do this. At least I have a source code >> printout for such a formatter. But while I can find a hard drive image of >> RT V5 for Pro, I haven't found any floppy-bootable images. And I think it's >> a bit tricky to create one. I knew, long ago for V2... >> Any suggestions? Any alternative sources for a formatter? I guess I really >> should consider typing in the core of that formatter and adding it to RSTS. >> paul