Not to worry. I am going to go through a few scenarios that might exist out there, and tell you how you should go about setting up your dual boot system. The chart below gives an idea of what type of boot manager you will need when combining one OS with another:

OS being Added

Original 

OS

As we can see, once NT is installed (either NT4 or Win2K) the NT boot manager can handle any combination of OS's. The boot process for NT4 and Win2K, as far as multi-booting is concerned, is identical, and anything that goes for NT4 applies to Win2K.

If you are booting between any Non-NT OS and Linux, then Linux's LILO can be used to control the booting between each OS.

It is impossible to boot between Win95 and Win98 without some sort of 3rd Party Boot Manager that will either hide one partition, or change which partition is the active partition.

No small FAT16 system partition:

This is not a problem. Just run bootpart from whatever partition is your system partition (i.e. it will be your active partition and have the boot files for your OS's on it). The reason I like to have a small FAT16 partition is for easy of recovery in case of disaster.

Just install. If you ever want to get back into DOS, you can hit F8 and choose "Previous version of DOS" from the boot menu.

There are two methods, one for if you are installing DOS from it's three installation diskettes (or my Mini-version of DOS), or if you have a copy of the DOS directory (and the boot files: IO.SYS, MSDOS.SYS, CONFIG.SYS and AUTOEXEC.BAT) already setup, and want to add it to an NT system.

  Method 1:

Copy Bootpart.exe onto the partition you will be booting NT and DOS off. Install DOS as per normal. Boot into DOS. Run Bootpart like so:

bootpart WINNT BOOT:C: (to turn the MBR back to an NT boot sector)

bootpart DOS622 bootsect.622 "MS-DOS 6.22" (To include a DOS option in the NT boot menu)

  Method 2:

Copy the DOS directory and the 4 files to the root of your active partition. Run Bootpart like so (important, you will need a DOS boot disk as the first command HAS to be run from DOS):

bootpart REWRITEROOT:C: (to place the IO.SYS and MSDOS.SYS at the beginnin of the partition)

bootpart DOS622 bootsect.622 "MS-DOS 6.22" (To include a DOS option in the NT boot menu)

Similar to method One described above for DOS. Install Win95 as per normal. Then run Bootpart with the following commands:

bootpart WINNT BOOT:C: (to turn the MBR back to an NT boot sector)

bootpart WIN95 bootsect.w95 "Windows 95" (To include a Win95 option in the NT boot menu)

Same as the way to install Win95, only the bootpart commands are as follows:

bootpart WINNT BOOT:C: (to turn the MBR back to an NT boot sector)

bootpart WIN98 bootsect.w98 "Windows 98" (To include a Win98 option in the NT boot menu)

Very similar to Dual booting NT4 workstation and NT4 server. Just install. The installation will update the boot.ini file to include entries for NT4 and for Win2K.

Install linux. Durinf the Linux installation, make sure that the LILO is placed on the linux Root partition. Then use bootpart as shown in the prvious sectionto add Linux to the boot menu.

I am going to be very honest here... I don't know. Now that I am finished with this tutorial, I might play around with Linux and start adding operating systems to it.