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OSR2 and dualboot

Posted on 1997-07-22
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Last Modified: 2013-12-16
With the 1st versions of W95 one could boot the previous DOS-version via the menu (BootMenu=1, BootMulti=1). As off OSR2 this seems not to be able anymore.
How do I solve this
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Question by:Adrie
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by:smeebud
ID: 1749661
They Say you can't do it with OSR2. But:
You could always (if you have room) repartition your hard drive to give a separate partition that boots DOS 6.2 or some such thing and install it there. (You can't dual boot to DOS under OSR2, but you can still multiboot -- Partition Magic ver. 3 will assist in all of this.)

That's the only way i believe it can be done without some trickery. Partition Magic will do it.
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Author Comment

by:Adrie
ID: 1749662
I have heard of 'tricks' that make it possible. Microsoft says that there is a way of doing it. Somehow they have a fix for it. I just can't find it at there website. But as far as I know now: it is possible
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by:smeebud
ID: 1749663
Here is the way to set it up for 95 and WFW. It has worked but I believe you have to create a dummiy Share.exe file. Just subtitute WFW with whatever your trying to load.
----------
Dual Boot Setup for Win95/Win 3.1-WfWG

A text file describing a step-by-step procedure I developed to install a
dual-boot menu function for my DOS 6/Win 3.11 and Win95 systems.   This way, I can choose which system I want to use at boot-up.   Doublespace and Drivespace drives can also be handled with this  configuration.  Use this method to continue running your critical  programs under your old DOS/Win system while you're testing Win95.

****************************************************************
I wanted to install a dual boot with Win95 & WFWG 3.11 so I could try
out Win95 without sacrificing my old system setup.   Here are the steps
you can take to duplicate my dual boot installation:
****************************************************************

1.  Copy (duplicate) the whole Windows directory and all it's sub directories to another directory, like \WIN31.  Copy the \DOS directory to another one as well, like \DOS6 .

2.  Edit all the INI files in the WIN31 directory and change all references from \WINDOWS to \WIN31.  The "find and replace" command in most word processors makes this easier, but be sure you save them as text files.

3.  Boot up your PC and install Win95 SETUP through windows program
manager "FILE-RUN".  As you install WIN95 it will rename your CONFIG.SYS AND AUTOEXEC.BAT files to CONFIG.DOS and AUTOEXEC.DOS.  (When you dual boot it renames them back to CONFIG.SYS AND AUTOEXEC.BAT....and then
backups the WIN95 versions as .W40).

4.  After Win95 finishes installing and you are on the desktop, use notepad with "select all files *.*"  to edit the CONFIG.DOS and AUTOEXEC.DOS files and change all \WINDOWS references in them to \WIN31, and all \DOS references to \DOS6 .

5.  In order for the dual boot menu to work, the following lines must appear in the [Options] section of your MSDOS.SYS file:   (If you use Doublespace or Drivespace disk compression you must change both MSDOS.SYS files - one on the boot drive and one in the compressed drive)

[Options]
BootGUI=1
Network=0
BootMulti=1
BootMenu=1
BootMenuDefault=7  (original DOS as default.  Use 1 for Win95 default)
BootMenuDelay=5    (number of seconds to select something else)
;

To add these lines, first, open "My Computer" and use the menu bar to
VIEW - OPTIONS - VIEW - Show All Files, and also unclick "hide MS-DOS file extensions".  Then double-click on the MSDOS.SYS icon and look.   If it dosn't have all the above lines, you'll need to edit this file
and put them in.  

Since the MSDOS.SYS file is "read-only-hidden" you'll need to first
change the file attributes and then use the notebook editor to insert
the new line(s).  Then you'll have to change the attributes back to
their original states when done to protect the file.

To change the attributes, click on the MSDOS.SYS icon using your RIGHT
mouse button.  Select Properties and uncheck the attribute blocks.
Exit and make your text changes, then save the file.  Then put the
attribute check marks back where they were.

7.  Now, exit Win95 and re-boot.  You should now see the boot menu and
be able to select which mode you want to boot into.

Remember, any programs you install after this will only appear in the
system you were running at install time.   For example, if you install
MS Word under Win95 you will have to install it again under old
DOS/Windows if you want to run it both ways.  You can install the
program to the same directory both times and you'll simply overwrite
the files and avoid having two sets of the new program on your hard drive.

Let me Know how it goes. If it doesn't work I'll have to ask a friend who has done this.
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Author Comment

by:Adrie
ID: 1749664
This is how it is done with the 'old' Win95. But with OSR2 this does not function anymore. Therefor you need a fix or something.

Adrie
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Accepted Solution

by:
logicx earned 100 total points
ID: 1749665
With only Win95 OSR2 it is impossible.  You could use the F4 button to boot into an old DOS with old win95, but if you do it with win95 OSR2 you'll corrupt your win95 OSR2 operating system, and you will have to re-install.  The only thing I suggest, that will work is getting System Commander (by I think V communications)
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Expert Comment

by:smeebud
ID: 1749666
No, It's not impossible. We've been looking at the MSDOS.SYS to try Dualboot. That won't work with OSR2. IF YOU STILL HAVE OLD 6.22 HELP FILE, go there and look at the top line far right;
Multi-Config. It's all there and we have two OSR2's running with a boot menu for old win and 95.
I'm having my partener writhe that up tonight.
Take a look. it's done with autoexec.bat.
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Expert Comment

by:logicx
ID: 1749667
yes, you can dual-boot win95OSR2 and win3.1, but try dos with it,
and you won't have win95OSR2 again... requires a total reformat/re-install.
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Author Comment

by:Adrie
ID: 1749668
I don't understand the last 2 comments (from smeebud and logicx) Could you provide me with some more info on this?
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