[ubuntu] Need some help partitioning my MacBook Pro disk

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http://ubuntuforums.org – I'm trying to set up dual-boot on my MacBook Pro, and have run into some questions. I used Disk Utility to allocate some free space for Ubuntu, and now I'm in the Ubuntu installer's partitioner. There are already 3 partitions on my disk. One is EFI, one is for Mac OS X, and one is I think for recovery. I want to make a partition for Ubuntu and a swap partition. First I created both as primary partitions, then remembered I can only have 4 primary partitions, so I made the swap partition logical. But why did it let me set them both as primary in the first place? Does this mean one of the exi (Hardware)