The /730 was configured with 5 MB, a UDA50, a DZ11, and a DEUNA. It suffers from the same kernel issue described above for the /750, so I really haven't done any significant testing at all other than confirming that the system comes up to multiuser and I can run basic commands.
-Henry On 23 June 2015 at 22:21, Ethan Dicks <[email protected]> wrote: > On Tue, Jun 23, 2015 at 7:06 PM, Henry Bent <[email protected]> wrote: > > Out of curiosity I tried Ultrix 4.3 and 4.5 on the /750, both with > genvmunix > > and a custom kernel, and both showed the problem. Whatever the issue > here > > is, it appears to never have been fixed. I tried disabling just about > every > > device I could save for the disk, and I still got a panic every time. > The > > only thing I haven't yet tried is using a different disk controller (than > > the UDA50). > > Definitely try a different disk. UNIX device drivers do not use the > hardware the same way that VMS drivers do. I helped debug the Simh > RP03 driver long ago because it wouldn't fully boot 2.9BSD (long story > short is that it was because the BSD driver wrote to a read-only > register to initiate an interrupt for device probing). I've also run > into issues with 4.3BSD not booting an 11/730 with RB80 (I did narrow > it down to specific lines of code in the rb.c driver but haven't > figured out what's not happening right. It's *very* early in the boot > sequence that things go off the rails, so it wasn't too hard to trace > in the code). > > > Interestingly, Ultrix 4.0 will boot on a /730 if you make a custom kernel > > (genvmunix is too big). I didint' try 4.3 or 4.5. > > Huh. I haven't tried that. Interesting. Which disk? UDA50 or the > IDC + RB80? (DU driver vs DQ driver in VMS terms) > > -ethan >
_______________________________________________ Simh mailing list [email protected] http://mailman.trailing-edge.com/mailman/listinfo/simh
