Right now I have one partition on my system with FreeBSD on it.

I want to install Linux logical partitions in a extended partition so Linux partitions won't take up all my real primary partitions which will be used for other OS:s later on.

I don't know how to do this in fdisk or if it is possible. I've searched the net for it.

Am I supposed to press 'e' for extended and then start making logical primary partitions with 'p' which will be placed into my extended partition...? The thing is I still what my 2 remaing primary partitions to be allocatable after I've done this and I am not sure its true.

I also want to be able to boot Linux from FreeBSD boot manager which I don't know if it will work when I install Lilo in a logical root partition.

Hope someone can help. Thanks!

Yes, you create an extended partition with 'e'. You then create logical partitions with 'l' (if you use all 4 primary's, it automatically select logical partitions). The remaining two primary partitions can still be allocated.

If you install LILO on the root partition, then it's just a question of getting the FreeBSD boot manager to "chainload" it. I can't remember how to do that offhand, but the docs should explain it.