JLA103@psuvm.psu.edu (02/27/91)
A friend of mine lent me his SCO Xenix to test it out. I seem to have a prob. with it, I think that I might be because of my stupidity, but here goes. Is there anyway to get sco xenix 386 to boot up / install on a 286? i have tried just about everything. Am I overlooking something?
glen@sungate.UUCP (Glen) (02/27/91)
In article <91058.011828JLA103@psuvm.psu.edu> JLA103@psuvm.psu.edu writes: >A friend of mine lent me his SCO Xenix to test it out. I seem to have a prob. >with it, I think that I might be because of my stupidity, but here goes. >Is there anyway to get sco xenix 386 to boot up / install on a 286? i have >tried just about everything. Am I overlooking something? No. There is not. The 386 kernel uses 386 instructions not available on the 286 CPU. There is a separate version of Xenix for the 286, available from SCO or any of us resellers. -- ** --*-- --*-- --*-- --*-- --*-- --*-- --*-- --*-- --*-- ** Glen Barney 301-330-4700 The beach is not just a place InterNet: glen%sungate@uunet.UU.NET to be - it's a way of life! BangPath: uunet!sungate!glen
jim@applix.com (Jim Morton [ext 237]) (02/28/91)
In article <91058.011828JLA103@psuvm.psu.edu>, JLA103@psuvm.psu.edu writes: > Is there anyway to get sco xenix 386 to boot up / install on a 286? i have > tried just about everything. Am I overlooking something? short answer: Yes! You can't do that! long answer: The 386 chip, and therefore 386 Xenix, has instructions and registers that don't even exist on a 286 chip, so there is no way to run 386 instructions on a 286 machine. You may want to consider something like an Intel Inboard-386 that is a card that goes into a 286-AT slot, with a cable that plugs into the 286 chip socket and turns the machine into a 386-AT machine. Be forewarned though that there are some slight compatibility problems with Inboard-386's, and there is a limit as to how much 32-bit memory you can put on the Inboard (3 meg, I think). I have run 386 Xenix on two Inboard-386's with only one issue: the BIOS-level system reset that gets triggered by "haltsys" (or CTRL-ALT-DEL in DOS) doesn't work - you have to power cycle the machine. -- Jim Morton, Applix Inc., Westboro, MA ...uunet!applix!jim jim@applix.com