mirror of https://github.com/tLDP/LDP
370 lines
16 KiB
Plaintext
370 lines
16 KiB
Plaintext
<!doctype linuxdoc system>
|
|
|
|
<article>
|
|
|
|
<!-- Title information -->
|
|
|
|
<title>The Linux ``Linux-DOS-Win95-OS2'' mini-HOWTO
|
|
<author>Mike Harlan, <tt>r3mdh@raex.com</tt>
|
|
<date>v1.3.1, 11 November 1997
|
|
|
|
<abstract>
|
|
This document presents a procedure to make 4 operating systems co-exist on a single hard disk.
|
|
</abstract>
|
|
|
|
<!-- Table of contents -->
|
|
<toc>
|
|
|
|
|
|
<!-- Begin the document -->
|
|
|
|
<p>
|
|
<descrip>
|
|
<tag>Disclaimer:</tag>
|
|
Any damages inflicted on any machine by you as a result of
|
|
your reading of this HOWTO is still YOUR FAULT. When you read
|
|
about deleting partitions and formatting disks, be smart.
|
|
Realize that doing any of the above will result in loss of data.
|
|
So, BACKUP SOON, BACKUP OFTEN. This is your second-to-the-last warning.
|
|
|
|
<tag>Stuff to make the lawyers happy:</tag>
|
|
Unless otherwise stated, Linux HOWTO documents are copyrighted by
|
|
their respective authors. Linux HOWTO documents may be reproduced and
|
|
distributed in whole or in part, in any medium physical or electronic,
|
|
as long as this copyright notice is retained on all copies.
|
|
Commercial redistribution is allowed and encouraged;
|
|
however, the author would like to be notified of any such distributions.
|
|
|
|
All translations, derivative works, or aggregate works incorporating
|
|
Linux HOWTO documents must be covered under this copyright notice.
|
|
That is, you may not produce a derivative work from a HOWTO
|
|
and impose additional restrictions on its distribution.
|
|
Exceptions to these rules may be granted under certain conditions;
|
|
please contact the Linux HOWTO coordinator at the address given below.
|
|
|
|
In short, we wish to promote dissemination of this information through
|
|
as many channels as possible. However, we do wish to retain copyright
|
|
on the HOWTO documents, and would like to be notified of any plans to
|
|
redistribute the HOWTOs.
|
|
|
|
If you have any questions, please contact Tim Bynum,
|
|
the Linux HOWTO coordinator, at
|
|
<htmlurl url="mailto:linux-howto@sunsite.unc.edu"
|
|
name="linux-howto@sunsite.unc.edu">
|
|
via email.
|
|
|
|
<tag>Updates from v1.3:</tag>
|
|
<itemize>
|
|
<item>Updated my e-mail address.
|
|
My address has changed from
|
|
<htmlurl url="mailto:r3mdh@imperium.net"
|
|
name="r3mdh@imperium.net">
|
|
to
|
|
<htmlurl url="mailto:r3mdh@raex.com"
|
|
name="r3mdh@raex.com">.
|
|
</itemize>
|
|
<tag>Updates from v1.0:</tag>
|
|
<itemize>
|
|
<item>Updated my e-mail address.
|
|
My address has changed from
|
|
<htmlurl url="mailto:r3mdh@dax.cc.uakron.edu"
|
|
name="r3mdh@dax.cc.uakron.edu">
|
|
to
|
|
<htmlurl url="mailto:r3mdh@imperium.net"
|
|
name="r3mdh@imperium.net">.
|
|
</itemize>
|
|
</descrip>
|
|
</p>
|
|
|
|
<p>
|
|
Now...........on with the show!
|
|
</p>
|
|
|
|
|
|
<sect>Introduction
|
|
|
|
<p>
|
|
After many days of struggle and frustration,
|
|
I finally figured out how to accomplish what I wanted.
|
|
I have a 1.2GB HD and 16MB RAM PC. I wanted to have 4 operating systems
|
|
on my system: MSDOS v6.22, Windows 95, OS/2, and Linux.
|
|
Until now, I have found no Linux HOWTO to perform the task of getting
|
|
each and every one of these operating systems on one machine and still
|
|
have the ability to boot each (it is possible to write the OSs to different
|
|
partitions, but getting them to boot and not hang at the ``Starting MSDOS''
|
|
message, for example, is something that I had to figure out.
|
|
Well, after much trial and error,
|
|
I have come up with the following recipe to perform this feat:
|
|
</p>
|
|
|
|
<p>
|
|
Before I begin going through the procedure step-by-step,
|
|
let me first clue you in on what I eventually wish to accomplish:
|
|
<tscreen>
|
|
<verb>
|
|
<NAME> <SIZE> <LABEL> <PARTITION NUMBER>
|
|
---------------------------------------------------------------------
|
|
MSDOS v6.22 11MB P1 Primary Partition 1
|
|
---------------------------------------------------------------------
|
|
Windows '95 350MB P2 Primary Partition 2
|
|
---------------------------------------------------------------------
|
|
OS/2 Boot Manager 2MB P3 Primary Partition 3
|
|
---------------------------------------------------------------------
|
|
DOS/Win Data 511MB E1 Primary Partition 4
|
|
OS/2 Warp 3.0 127MB E2 Extended into 4 logical
|
|
Linux Slakware 3.2 Swap XMB E3 drives (sub-partitions)
|
|
Linux Slakware 3.2 Native 219-XMB E4 labeled E1-E4
|
|
---------------------------------------------------------------------
|
|
</verb>
|
|
</tscreen>
|
|
What does all of this mean? Well, let me talk you through it.
|
|
First, we need to use up all 4 partitions on our 1 harddrive.
|
|
Partitions 1 through 3 are PRIMARY partitions.
|
|
We will store MSDOS, Win95 and the OS/2 Boot Manager
|
|
(which inefficiently requires its OWN partition) on these partitions,
|
|
respectively. We then have 1 partition left.
|
|
But, we want to have a drive just for DOS/Win95 data
|
|
(this gives us a large place to dump all of those ZIP files
|
|
we so often download from the Internet as well as a place to store
|
|
Win95 programs and data that we don't have enough room for
|
|
on the Win95 partition),
|
|
OS/2, and Linux (both a Linux native as well as Linux swap partition).
|
|
</p>
|
|
|
|
<p>
|
|
Now, I've been getting a lot of grief through e-mail lately about
|
|
why I have a separate partition for Win95 and one for DOS
|
|
and one for Win95/DOS data.
|
|
Here's my answer: having separate Win95 and DOS partitions isn't for everyone.
|
|
Perhaps you don't even use DOS anymore.
|
|
Perhaps Windows '95 is your answer for any software written for a Microsoft
|
|
platform. Well, there are some people out there who still use DOS and
|
|
can't live without it. Whether it's because DOS can run 16-bit applications
|
|
faster and more efficient, or because the certain DOS program
|
|
that you may use won't run under a Windows environment
|
|
(the Gravis Ultrasound soundcard setup program comes to mind),
|
|
you simply MUST be able to boot into DOS from time to time.
|
|
This HOWTO was written with those people in mind.
|
|
If you still have difficulty swallowing the fact that the word
|
|
``MSDOS'' is included in this HOWTO, then feel free to sit down and write
|
|
a Linux-Win95-OS/2-only HOWTO. :)
|
|
</p>
|
|
|
|
<p>
|
|
Now, back to the diagram above.
|
|
Like I said, we have 1 partition to cram 4 things onto:
|
|
DOS/Win data, OS/2, and Linux native & swap.
|
|
This can be done by creating what are called logical drives
|
|
(or logical partitions, depending on which book you read)
|
|
within the 1 primary partition.
|
|
When we create these logical drives within a primary partition,
|
|
we refer to this primary partition as an EXTENDED PARTITION
|
|
(because it is extended beyond the scope of a single,
|
|
primary partition and instead contains up to 3 subpartitions
|
|
(logical drives)). Confused? If so, you might want to read the OS/2 manual
|
|
about this topic. It will explain it better than I have here.
|
|
</p>
|
|
|
|
<p>
|
|
Now, you might be scratching your head saying
|
|
``he wants to cram 4 things onto that extended partition,
|
|
but he just got done saying we can only have 3 subpartitions to put them on!''
|
|
This is true, at least in MS-DOS's and OS/2's reasoning.
|
|
But, here one of the many powerful advantages to Linux comes to save the day.
|
|
Linux can create more than 3 subpartitions on an extended drive.
|
|
Just how many, I don't know. But, I know it can create at LEAST 4
|
|
(what we need). So, when we go through the steps of the installation
|
|
procedure below, keep in mind that when we create partitions using an MSDOS
|
|
or OS/2 program, we will only create 3 logical drives.
|
|
Then, when we go to Linux, we will split one of them into two.
|
|
Essentially, you can think of it as ``tricking'' MSDOS and OS/2
|
|
into seeing only 3 logical drives, but in reality (and to Linux),
|
|
there will be 4.
|
|
</p>
|
|
|
|
|
|
<sect>The Procedure
|
|
|
|
<p>
|
|
<descrip>
|
|
<tag>NOTE:</tag>
|
|
Numbers in parentheses were the number of megabytes
|
|
that I used on my 1.2GB harddrive.
|
|
</descrip>
|
|
Now, let's move on to the step-by-step procedure:
|
|
<enum>
|
|
<item>Run <tt>view.exe</tt> on the Linux Slakware CD
|
|
and create the Linux Boot and Linux Root floppies.
|
|
For some reason, the Linux bootstrap program calls the Root disk
|
|
the Ramdisk floppy. I'll refer to this disk from now on
|
|
as the Ramdisk (Root) floppy.
|
|
<item>Backup any information that you wish to keep to tape
|
|
(or whatever media you have available to you).
|
|
<item>Boot your original MSDOS installation floppy, disk 1.
|
|
<item>When ``<tt>Starting MSDOS</tt>'' appears,
|
|
press F5 to bypass <tt>config.sys</tt> and <tt>autoexec.bat</tt>.
|
|
<item>Run <tt>a:\fdisk.exe</tt>.
|
|
<item>Delete all partitions
|
|
(you have been warned:
|
|
DELETING / MODIFYING OF ANY PARTITION
|
|
WILL RESULT IN THE LOSS OF ALL DATA ON THE DISK!).
|
|
<item>Add an MSDOS primary partition. (11MB)
|
|
<item><tt>Format</tt> this partition.
|
|
<item>Run <tt>a:\setup.exe</tt> to install MSDOS on this partition.
|
|
<item>Boot OS/2.
|
|
<item>Select Advanced installation.
|
|
<item>Run <tt>FDISK</tt>.
|
|
(this will eventually popup for you if you run through
|
|
the OS/2 installation)
|
|
<item>Add 1 primary partition after the MSDOS one.
|
|
This will become our Windows 95 partition. (349MB)
|
|
<item>Add the Boot Manager to the next primary partition. (2MB)
|
|
<item>Add an extended partition.
|
|
<item>Add a logical drive to the extended partition.
|
|
This will become the data portion of our MSDOS system. (511MB)
|
|
<item>Add another logical drive to the extended partition.
|
|
This will become our OS/2 HPFS (``High Performance File System'')
|
|
partition. (127MB)
|
|
<item>Add 1 last logical drive to the extended partition
|
|
using the remaining space on the drive.
|
|
This will later become 2 partitions under Linux —
|
|
our swap partition and our native Linux partition.
|
|
But, since OS/2 (and DOS as well) can only write up to
|
|
6 partitions per drive (3 primary and 3 logical drives
|
|
housed within 1 extended partition), we have to create only one
|
|
at this time. And we DO have to create this partition.
|
|
Don't leave this as free space and expect Linux to be able
|
|
to create the two partitions. Due to the way that OS/2's FDISK works,
|
|
where you add your last logical drive to the extended partition
|
|
marks the END of the extended partition.
|
|
You can<bf>not</bf> add partitions beyond this point.
|
|
So, in other words, creating this one last logical drive serves
|
|
as a space-filler for Linux. Later we will delete this partition
|
|
and add 2 new ones in the space that it once took up.
|
|
<item>Add partitions 1, 2, and 5 to the Boot Manager.
|
|
<item>Make partition 5 installable.
|
|
|
|
Your <tt>FDISK</tt> screen should now look like this
|
|
(or something like this):
|
|
<tscreen>
|
|
<code>
|
|
|
|
FDISK
|
|
|
|
Disk 1
|
|
___________________________________________________________________________
|
|
|
|
Partition Information
|
|
Name Status Access FS Type MBytes
|
|
___________________________________________________________________________
|
|
|
|
MSDOS Bootable C: Primary FAT 11
|
|
WIN 95 Bootable : Primary FAT 350
|
|
Startable : Primary BOOT MANAGER 2
|
|
None D: Logical Unformatted 511
|
|
OS/2 Installable E: Logical FAT 127
|
|
None F: Logical Unformatted 219
|
|
</code>
|
|
</tscreen>
|
|
|
|
<item>Continue on with the OS/2 installation process.
|
|
<item>Reboot and select partition 2 (Windows 95) from the Boot Manager.
|
|
<item>When the missing operating system error pops up,
|
|
boot your MSDOS installation disk.
|
|
We selected this partition in order to ``hide'' the MSDOS partition.
|
|
OS/2's Boot Manager is a bit strange. For every bootable partition
|
|
you have (in our case, MSDOS and OS/2), you can have only one of
|
|
them visible at a time. What this means is that if you boot into
|
|
one partition, MSDOS for example, the other partition (Win95) is
|
|
invisible. The MSDOS partition and Win95 essentially SHARE a drive
|
|
letter. That's why under ``Access'' above, MSDOS has drive letter C
|
|
and Win95 has no drive letter. Under the current circumstances,
|
|
MSDOS is visible with drive letter C and Win95 is invisible with
|
|
no drive letter. If we were to boot Win95, the opposite would be true:
|
|
MSDOS would be invisible with no drive letter and Win95
|
|
would be visible with drive letter C.
|
|
<bf>An invisible drive cannot be accessed AT ALL.</bf>
|
|
If you wish to copy files between two drives
|
|
in which only one can be visible at one time, you must use a common
|
|
(non-bootable) drive to swap files.
|
|
In our case, the DOS/Win95 Data drive (drive D 511MB above)
|
|
will serve as this common drive. You might be asking
|
|
``Won't we eventually be booting Linux also?''.
|
|
The answer is yes, we will. But let's not get into that just yet.
|
|
<item>Install MSDOS to Partition 2
|
|
(we'll need this in order to install Windows 95).
|
|
<item>Boot Partition 2.
|
|
<item>Install Windows 95 to this partition (if you are running the upgrade
|
|
version of Win95, you may need to have your Win3.1 installation disk 1
|
|
ready to insert).
|
|
<item>Boot Partition 1.
|
|
<item>Format Partition 4.
|
|
<item>Restore DOS data from tape (if any) to partitions 1 and 4.
|
|
<item>Boot the Linux Boot Floppy.
|
|
<item>Follow up with the Linux Ramdisk (Root) floppy.
|
|
<item>When you log in as root and get to the <tt>#</tt> prompt,
|
|
type ``<tt>fdisk</tt>'' and press enter.
|
|
<item>Delete the last partition (the one we created in step 18).
|
|
<item>Add 1 16MB partition and tag it as filesystem type Linux Swap. (17MB)
|
|
<item>Add 1 last partition with the remaining cylinders on the disk and tag
|
|
this as filesystem type Linux native. (198MB)
|
|
<item>Write the changes to the boot sector and reboot.
|
|
<item>When you get to the <tt>#</tt> prompt again, run <tt>setup</tt>.
|
|
<item>Install Linux to the last partition.
|
|
<item>When you install LILO, be sure to install it to the root of the last
|
|
partition (NOT to the MBR, as you will destroy all of your previous
|
|
work in this HOWTO if you do so). Add only the last partition to
|
|
LILO and set the timer to zero. By doing this, when you select Linux
|
|
from the OS/2 Boot Manager, LILO will activate
|
|
and will then boot Linux from the logical drive on the extended
|
|
partition. Since Linux is the only partition
|
|
that we wish to activate from LILO, we don't need a timer on it
|
|
(unless you have more than one Kernel that you wish to load.
|
|
In this case, you may want to set the timer to something more
|
|
than 0 seconds).
|
|
<item>Activate the Linux swap partition
|
|
(refer to the Linux Installation and Getting Started Manual
|
|
by Matt Welsh for this).
|
|
<item>Boot OS/2.
|
|
<item>Run FDISK.
|
|
<item>Add Linux to the Boot Manager using the Linux NATIVE partition
|
|
(type <tt>83</tt> <bf>not</bf> <tt>82</tt>!).
|
|
</enum>
|
|
Your <tt>FDISK</tt> screen should now look like this (or something like this):
|
|
<tscreen>
|
|
<code>
|
|
|
|
FDISK
|
|
|
|
Disk 1
|
|
___________________________________________________________________________
|
|
|
|
Partition Information
|
|
Name Status Access FS Type MBytes
|
|
___________________________________________________________________________
|
|
|
|
MSDOS Bootable C: Primary FAT 11
|
|
WIN 95 Bootable : Primary FAT 350
|
|
Startable : Primary BOOT MANAGER 2
|
|
None D: Logical FAT 511
|
|
OS/2 Bootable E: Logical HPFS 127
|
|
None : Logical Type 82 17
|
|
Linux Bootable : Logical Type 83 198
|
|
</code>
|
|
</tscreen>
|
|
...And you're done!
|
|
</p>
|
|
|
|
<p>
|
|
Send any comments/suggestions/problems (as a last resort, please!)
|
|
to me at
|
|
<htmlurl url="mailto:r3mdh@raex.com" name="r3mdh@raex.com">.
|
|
</p>
|
|
|
|
<p>
|
|
Mike Harlan,
|
|
11 NOV 1997
|
|
</p>
|
|
|
|
</article>
|