fanj@remb6489.wpd.sgi.com (Fan Jiao) (05/09/91)
I would like to know how to get DOS box in OS/2 V2.0 PR3. All I got was the error msg saying "DOS Emulation is not currently available". I looked at the readme file in the toolkit, and there was no such comments about DOS box. Thanks. -- ~~~~~~~~~~~~~~~~~~~~~~~~~~~~ (Fan Jiao, (x:1615, M/S:9U-510) )
wayne@csri.toronto.edu (Wayne Hayes) (05/12/91)
In article <1991May9.160456.16628@twilight.wpd.sgi.com> fanj@twilight.wpd writes: >I would like to know how to get DOS box in OS/2 V2.0 PR3. All I got was the >error msg saying "DOS Emulation is not currently available". I looked at the >readme file in the toolkit, and there was no such comments about DOS box. >Thanks. I can think of two things off the top of my head. First, check your CONFIG.SYS to see if it has the line "PROTECTONLY=YES". If so, change it to say "NO", since DOS is not a protected mode application. Second, one of the older Beta versions had a bug that wouldn't allow any DOS boxes to open if there weren't any DOS devices loaded. If the above doesn't work, then try adding the line "DEVICE=C:\OS2\MDOS\ANSI.SYS" to your config.sys file. Then you should be able to run DOS boxes galore. -- NOTICE: Due to the complexity of nearly all topics, the opinions expressed above are in continual process of formation and may be changed without notice. Wayne Hayes INTERNET: wayne@csri.utoronto.ca CompuServe: 72401,3525
tshea@vax1.mankato.msus.edu (05/13/91)
In article <1991May9.160456.16628@twilight.wpd.sgi.com>, fanj@remb6489.wpd.sgi.com (Fan Jiao) writes: > I would like to know how to get DOS box in OS/2 V2.0 PR3. All I got was the > error msg saying "DOS Emulation is not currently available". I looked at the > readme file in the toolkit, and there was no such comments about DOS box. > Thanks. > > -- > ~~~~~~~~~~~~~~~~~~~~~~~~~~~~ > (Fan Jiao, > (x:1615, M/S:9U-510) > ) Reinstall OS/2 2.0 and answer NO to the question of installing OS/2 with the defaults and when the options screen pops up select everything with the space bar. Should work fine. tim LAN Admin International IS&DP 3M, Inc.
ant@brolga.cc.uq.oz.au (Anthony Murdoch) (05/15/91)
wayne@csri.toronto.edu (Wayne Hayes) writes: >Second, one of the older Beta versions had a bug that wouldn't allow any >DOS boxes to open if there weren't any DOS devices loaded. If the above >doesn't work, then try adding the line "DEVICE=C:\OS2\MDOS\ANSI.SYS" >to your config.sys file. Then you should be able to run DOS boxes galore. > I haven't ever played with OS/2, and I don't have a copy of any of the pre-releases (I'd love to have a copy to play with), but I have been following the conversation here with a fair amount of interest. I have a few questions that I would like answered if possible. First of all, Wayne mentions above loading a DOS device in the OS/2 config.sys file. In his example, he loads it from "C:\OS2\MSDOS" (I take it he meant MSDOS and not MDOS). Is this driver (in this case ansi.sys) just an ordinary MSDOS driver or is it a special OS/2 protected version of the MSDOS drivers. If the former, is there an option to have OS/2 versions of these that will work inside DOS boxes. Secondly, how much memory do you have available in a DOS box. Intuatively (though I know things never work that way) I would think you should be able to have 640K or better if you are using DOS 5. My reasoning is this; All the usual drivers, (mouse, ansi.sys, etc) should be loaded into memory completely separate from the 1024K allocated to the DOS box. If you have MSDOS loaded high, then most of it is out of the first 640 of that 1024. Using the usual tricks, it should also be possible to reclaim some of the 641-1024 back as DOS memory (you're not going to be using EMS memory are you ?). I think this will all add up to over the 640. If this is the case, then it's almost worth getting OS/2 to get DOS working better :-) Please be forth-comming with any comments you might have about my stupidity (or brilliance :) as the case may be. BTW, I was hoping to manage a similar trick with just DOS 5, and I probably would have managed to get over 640K if it wasn't for the fact that 32K of my high memory is taken up by a scanner card and an ethernet card. the best I was able to muster was 635 or there abouts. But I suppose that isn't too bad for a machine with VGA. ant -- V ant "It's great to be young and insane" \o/ ant@brolga.cc.uq.oz.au - Dream Team -O- Anthony Murdoch Prentice Centre /0\ Phone (07) 36 54078 University of Qld