http://wardonx.orcon.net.nz/slin.html

If you are lucky enough to have a DOS/Windows partition, you can get round the requirement of making 6 floppies if you can't boot off a CD-ROM.

I got the idea for doing this from Debian, who've had the option of booting an install this way for years, & figured out the method from Kent Robotti's RamFloppy .

ftp://ftp.ibiblio.org/pub/Linux/system/recovery/ramf-118.exe