Ultrix device names

On 3/22/07, der Mouse <mouse at rodents.montreal.qc.ca> wrote: I don't know about Ultrix 4.3 in particular, but my memories of Ultrix 1 and 2, you might have to inspect the results of the kernel rebuilt to see what device major/minor numbers map to the CD-ROM drive, or more specifically, to the secondary MSCP controller. It really doesn't matter to the kernel what the device files are named in /dev, just the major/minor numbers tacked onto those device files. You can also inspect, IIRC, /dev/MAKENOD or something similar, the script that goes out and creates device files as required. There might be some mention of CD-ROM drives under an Ultrix as new as 4.3. In general, booting an MSCP device from the "lazy sargent" prompt (>>>), you'd have to know details about the specific machine to be exactly right, but I'd start with "B DUB0", for the "DU" device, second controller, drive 0. If the CD-ROM happens to be numbered 6, which was common in Sun boxes (in case you borrowed such a drive), you might also try "B DUB6". In newer MicroVAXen than I've ever owned, I think there's a way to get the ROMs to dump out what MSCP unit names/numbers respond to some sort of probe. With older machines, you just have to "know" what device names are going to be valid. -ethan