Far as I can tell, you must have / /boot and /swap as partitions.
cant really tell you alot about /boot but on my system its about 23mb and I would guess contains things that do stuff at boot up (technical to the extreme).
/swap is your swapfile/page file/virtual memory. Windoze thinking would suggest that 1.5-2x the amount of disk space as you have physical RAM is a good idea, ie if you have 128mb RAM, you want about 256mb set aside for /swap.
/ is the root filesystem and contains your system files, applications and other gubbins that you download, write, create or otherwise stick on your system somewhere. (C:\ I guess is the nearest windows equivelent).
If like me you tend to spend more time installing linux than actually using it, you might want to consider creating a separate partition for your /home directories. Then when you end up blitzing everything again you do at least still have all your personal data and any handy widgets that you have downloaded in the meantime (assuming you save to /home/somethingorother by default).
If you want to tinker around but arent too sure, you can always let the installation routine create the partitions and then go and edit them to your liking, at least it will have created a setup that will work before you actually start playing with it.
Last edited by Nelleh; 06-05-2002 at 11:30 AM.