Although this post has primarily to do with the installation of Windows, I guess the Linux forum is more appropriate for it because the main problem is about a linux partition which is already present on the disk.
My current situation:
I have a laptop running Windows 98 in the first partition. The second partition of the disk is a FAT32 data partition used by Windows. The third partition of the disk has linux installed. Lilo is configured to provide a selection menu when starting up whether to start Windows 98 or Linux.
This configuration is working fine for a long time now. Until now, I needed Windows 98 for specific client projects because I needed the possibility to boot in full MS-DOS mode for certain timing dependent proprietary software. Fortunately I don't need that software anymore, and I would like to upgrade the system to Windows 2000. That OS gives me the possibility to install software which doesn't run under 98. It also gives more stability to my laptop than 98.
Now I face a potential problem however. I would like to keep the third linux partition on the disk and have it bootable. Unfortunately, after reading some documentation, Windows 2000 replaces the bootloader when installed, and thereby makes the linux partition unaccesible. There are some step-by-step guides to install linux and Windows 2000 on one disk, but these guides all assume that you install linux AFTER Windows 2000. I already have linux installed. According to the information I read, it is necessary to have Windows 2000 in the first partition. Because this first partition is now occupied by Windows 98 and I will overwrite it with the newer OS, this is not a problem for me.
Can anyone give me some hints how to install Windows 2000 in such a way that I can make the linux partition accesible again after the installation?