dont create a big partition for xp. leave it small, and leave the rest of the space unpartitioned. this will eliminate the need to "resize" your windows partition, which can some times cause problems, and it would make things a bit easier
steps to take in my opinion-
1 use xp cd to wipe all partitions
2 use xp cd to create ntfs partition (leave unpartitioned space for other partitions)
3 install xp on that partition
4 install gentoo (will create additional partition and install grub)
5 install slackware (will create additional partition and modify grub)
6 load one of the linuxes and manually modify grub to auto boot xp, after x seconds
basically both linuxes on install will automatically advise you with a partitioning system for them. you just make sure it fits with your plan, and then allow it to make the partitions.
also it shouldnt matter the order you install gentoo and slack, as long as they are after xp. cause they can automatically make a dual boot, the only intervention you need to do, is make sure they dont take up all the space, so you can have your tripple boot.
your swap partition should also be twice the size of the amount of ram you have. idk if slack, and gentoo can share a swap partition, but maybe they do so you should look into that.
Edited by Thebinaryman, 06 February 2006 - 05:34 PM.