olender@sor.CS.ColoState.Edu (Kurt Olender) (03/14/90)
I've installed IBM OS/2 v1.2 on a 386 clone and am having some problems with booting DOS from a floppy (otherwise it works fine). Several weeks ago, several messages described a procedure to set up OS/2 1.2 so that dual boot and HPFS could co-exist. The main point of these messages was that DOS won't recognize the HPFS c: partition and so will be "fooled" into thinking that a d: FAT partition is c:. I don't plan on using dual boot much, so I arranged, as was described in one of those messages, to boot DOS from a floppy. The advantage was that one would not have to use FDISK to switch the primary partition on the hard disk before booting the other system. I installed OS/2 with HPFS on the c: drive, and made a small FAT d: drive on which I planned to install whatever DOS software I had that wouldn't work in the compatibility box. Either this procedure doesn't work or I executed it incorrectly. DOS doesn't recognize any partition at all on the hard disk when booted from a floppy. This makes some sense WRT a recent article in Byte about HPFS, as by formatting c: with HPFS, the extended partition information is also lost, so DOS can't find the extended partitions, regardless of whether or not they are FAT. Can anyone enlighten me as to what I should do, what steps I omitted, or why what I want to do can't possibly work? Thanks in advance.
sigurd@sun.acs.udel.edu (Sigurd Andersen) (03/15/90)
In article <5237@ccncsu.ColoState.EDU> olender@sor.CS.ColoState.Edu (Kurt Olender) writes: : I've installed IBM OS/2 v1.2 on a 386 clone and am having some problems : with booting DOS from a floppy (otherwise it works fine). : : Several weeks ago, several messages described a procedure to set up : OS/2 1.2 so that dual boot and HPFS could co-exist. : [ ... ] : Can anyone enlighten me as to what I should do, what steps I omitted, : or why what I want to do can't possibly work? : : Thanks in advance. I have not been following this group regularly, so may be duplicating what others have already posted. If so, sorry for any inconvenience. I have installed IBM OS/2 Std. Edition v1.2 on an IBM PS/2 model 80 set up for DUAL BOOT. I did this by creating a large C: FAT partition, installing DOS so that it would boot from C:, then installing OS/2 set for dual boot ALSO on C:. Once this was done, I could use the BOOT command to re-boot and come up in either DOS or OS/2. After this all worked, I created another partition (with the space unused when I first used FDISK to set up the C: partition) for HPFS - which only OS/2 will recognize. So -- I can now boot DOS or OS/2 from C:, and have an HPFS partition for all the OS/2 stuff beyond what is required for booting to OS/2. Some or all of this procedure may not work with non-IBM versions of OS/2 SE 1.2. Not having access to such, I have no way of knowing. -- Sigurd Andersen sigurd@pyr1.acs.udel.edu Academic Computing Support sigurd@sun.acs.udel.edu University of Delaware Bitnet: ACS20833@UDACSVM Newark, DE 19716 phone: (302) 451-1992