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From: ben@catnip.UUCP (Bennett Broder)
Newsgroups: comp.sys.ibm.pc
Subject: Re: Booting xenix/microport unix from drives other than C:
Message-ID: <415@catnip.UUCP>
Date: Wed, 12-Nov-86 23:17:31 EST
Article-I.D.: catnip.415
Posted: Wed Nov 12 23:17:31 1986
Date-Received: Sat, 15-Nov-86 05:06:16 EST
References: <69@reality1.UUCP> <134@tekline.UUCP>
Reply-To: ben@catnip.UUCP (Bennett Broder)
Organization: The Broder Residence, Holmdel, N.J.  07733
Lines: 34
Keywords: PC/AT unix boot

In article <134@tekline.UUCP> howardl@tekline.UUCP (Howard D. Leadmon) writes:
>In article <69@reality1.UUCP>, james@reality1.UUCP (james) writes:
>> Is it possible to boot Xenix or Microport's unix from a second hard disk? 
>> Is there a way of doing this by running a boot program under DOS, or
>> booting the computer from a floppy disk (which then boots xenix/unix from D:)?
>> -- 
>> James R. Van Artsdalen    ...!ut-ngp!utastro!osi3b2!james  
>
>  There may be a way to do this with XENIX, but I don't think so (I wouldn't
>bet any money on it). What I have done for my customers that want to run both
>(MS)PC/DOS is to set the machine up so that it boots XENIX as the default, then
>I make a floppy that they can put in drive A: when they want to boot DOS. Below
>is an example of what I would do.
>
>	1.  First load XENIX (UNIX) on drive C:
>	2.  Format and load DOS on drive D:
>	3.  Format a floppy disk with system and install the following 
>  	    AUTOEXEC.BAT file on the floppy disk (ie: DOS commands will be
>            located in D:\DOS)


Another solution, if you don't care for floppies, is to put a tiny little
DOS partition on drive 0 (C:)(The Xenix drive).  Make Xenix the active
partition.  Then, to boot Xenix, just power up as usual.  To run Dos, type
'dos' at the Xenix boot prompt. (A feature of 2.1.3 Xenix from SCO, I am
not sure whether IBM Xenix has it).  The little partition should have an
autoexec that switches to the main Dos drive (D:).


-- 

Ben Broder
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