howards@pinball.wpd.sgi.com (Howard Simonson) (02/27/90)
Original-posting-by: howards@pinball.wpd.sgi.com (Howard Simonson) Original-subject: Re: Syquest 44MB and A/UX Reposted-by: emv@math.lsa.umich.edu (Edward Vielmetti) I'm happy to report total sucess so far with the "Fix-Error-Page" procedure. I've been able to run dp on my Syquest carts and set them up as A/UX filesystems. Fairly good notes come with the Fix-Error-Page program, which talks a bit about how to make an A/UX bootable backup cartridge. There are just a few points that I'm not sure about and the notes don't explicitly cover. Maybe someone on the net can enlighten me. Using the standard Apple Quantum as a guide, there are some 9 partitions. I gather the first block of the disk is the boot block and simply is never defined in the SCSI partition map. If I expect to make a MacOS bootable, SASH partition on the HardCart I'll need the boot block written, right? And this will just occur as normal when I get around to writing the System/Finder onto the SASH partition under MacOS, right? Now there is this partition called the "Apple_Partition_Map" right at blocks 1-64. How does this thing relate? What does it do? My guess is its a possible throwback to the days before everyone was doing true SCSI partitioning. Is this a must have for the MacOS boot phase? If not, what goes at block 1+.... If this is a must have (like maybe MacOS can't find the SASH partition without it?) what's the format, how do I load it? I would guess a straight copy of the 80meg version wouldn't fly for a ~40meg HardCart. Thankfully, the rest of the business (i.e. creating FS/swap partitions) is fairly straightforward. BTW, does anyone have a stock dp(1m) script that inits and build all the partitions necessary for a bootable hardCart. That would be a real time saver and I'm sure you'd get a lot of net thanks. Otherwise, if and when I figure all this out and get it working, I'll try to post one. Many thanks in advance for help with this stuff. And a few thanks in return for the pointers to fix-error-page, at least I'm backing up now! ---------------------------------------------------------------------- Ancient Proverb: A person with one watch knows what time it is; a person with two watches is never sure. Modern Translation: They build clocks into every piece of consumer electronics just to keep us totally confused. howards@ssd.sgi.com [ The disclaimer for this message may be found in a previous article ]