I plan to install 4 Linux systems but don't want to install a boot loader (LILO or GRUB) with any of the systems but instead rely on boot floppies because I always had reliable performance with floppies in the past. However, LILO or GRUB is more convenient and faster so I would like to at least give them a try.
How can LILO or GRUB be installed after the Linux systems have been installed and working? I couldn't find any info about installing them after the systems are installed. How would you create a menu to include all 4 Linux systems plus Windows? And, in the event I decide to remove the boot loader later, how can this be done safely? The reason for my not wanting to include boot loaders during the Linux installations is, I had a BIG problem once when I made a mistake near the end of a Linux installation and couldn't correct it. So, I halted the installation to try to restart it. GRUB had already been installed and it wouldn't let me to do a reinstallation but it insisted on trying to boot the incomplete Linux and nothing else, not even DOS, could be booted. It's a long story, but I ended up reformatting the Windows partition and reinstalling everything. Using boot floppies is as reliable as wearing a belt and suspenders but both are inconvenient and slower.

