"When you install the second linux dist. select the exist /boot and /swap/
That way, you would wast your space."
Is that safe? I don't think it should be a problem for /swap but what about /boot/System-map ? I confess I don't fully understand what System-map is for, but it does seem to be kernel specific. I suppose if it works it works, but it would make me a bit uneasy. Perhaps someone more clued in about the specifics of the /boot directory and lilo could post some insight.