PDA

View Full Version : Boot Manager for Coexistence of XENIX 86 and MS-DOS ?



z80eu
May 10th, 2014, 03:31 AM
Hi all,

short question(s), hopefully not difficult to answer.
I would like to let run XENIX-86 and MS-DOS on my 5160.
Are there any 8088 compatible boot manager existing to have it coexistent (booting one of two from the harddisk) ?

And btw. does anybody tried to install XENIX-86 with a SCSI controller instead of a MFM Controller ?

Caluser2000
May 10th, 2014, 05:11 AM
This might be useful http://www.bttr-software.de/products/bootmgr/

System requirements;

Intel i8086/88 microprocessor (or compatibles)
Any video adapter that is set to 80x25 text mode at boot
Hard disk accessible through standard BIOS INT 13h interface

z80eu
May 11th, 2014, 01:24 AM
This might be useful http://www.bttr-software.de/products/bootmgr/
[...]

I tried it, it works for a dual installation of different MS-DOS.

Unfortunately I was able to find some information about Xenix describing "SCSI support" since Xenix [286] version 2.31.
That means there was no SCSI support before, so I guess Xenix-86 (for the IBM PC/XT) runs ONLY with MFM controller.
And so PC/IX, doesn't run with SCSI controller, too.
This is a bit ridiculous, because SCSI was found in more professional used systems (= like XENIX or PC/IX).

Only MINIX 2.02 (last PC/XT compatible version) runs with SCSI, if a special boot command is used (hd=bios).

Echoes
May 13th, 2014, 07:24 AM
Xenix for 386 is able to boot DOS. 8086 should do it, too.

http://www.unicom.com/pw/faq/sco-xenix.faq (look for QX1)

z80eu
May 17th, 2014, 01:02 AM
Xenix for 386 is able to boot DOS. 8086 should do it, too.

http://www.unicom.com/pw/faq/sco-xenix.faq (look for QX1)

I am not sure what you want to say. If you want to mention, that Xenix is able to "start" DOS in a first (non-active) partition, yes.
If you want to mention, that Xenix has a "dual boot" manager, no. I can use VP/IX to run a "DOS Box" in a Xenix 386 version, too.
But I have only an IBM PC/XT. No VP/IX. And with SCSI, no Xenix 86.

Echoes
May 18th, 2014, 03:47 AM
If you want to mention, that Xenix is able to "start" DOS in a first (non-active) partition
ditto.


And with SCSI, no Xenix 86.
Right, but that was the second question :)