I've been trying to install 11.04 on my MacBook Pro5,2, (already have Mac OS X Snow Leopard and Windows 7 installed) but every time I get to screen where it asks me to install, the installation GUI doesn't see my partitions. The strange thing is that if I run sudo fdisk -lu /dev/sda I get:

Disk /dev/sda: 160.0 GB, 160041885696
255 heads, 63 sectors/track, 19457 cylinders, total 312581808 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x32104075

Device Boot Start End Blocks Id System
/dev/sda1 1 409639 204819+ ee GPT
/dev/sda2 * 409640 166425271 83007816 af HFS / HFS+
/dev/sda3 166688768 254389274 43850253+ 7 HPFS/NTFS
/dev/sda4 254390272 312580095 29094912 83 Linux

Seems like everything is fine, no sectors are overlapping, and fdisk definitely recognizes the partition. But when I run the graphical install, I get a menu that says:

Device Type Mount point Format? Size Used
/dev/sda
free space 0 MB
/dev/sda1 efi 209 MB 209 MB
/dev/sda2 hfs+ 85000 MB 76954 MB
/dev/sdb
...

There's no option to choose /dev/sda4!! (or even /dev/sda3, my Windows partition)

If it also helps to know, /dev/sda is an Intel x25-M SSD, and I also have another internal HDD (using an OptiBay), so I'm running the install from an external DVD drive.

Here is the installation screenshots: http://www.debianadmin.com/ubuntu-11...y.html?pid=413

Check if you are missing something.

I've read that 11.04 is really buggy and that they even skipped the release candidate to get it out on time, not to mention some developers wanted to switch from unity to gnome as little as a month before the release. If ya want a good system and need it to be easy like Ubuntu get linux Mint.....it is after all Ubuntu made better.

Try to disconnect SSD drive for install. Or try to use refit to recreate mbr table... Maybe this will help.

First of all, Macintosh do not use a bios like ordinary pcs, they use an efi instead. Dual booting macs are a little different to other computers because of this factor. First, How are you trying to dual boot, through bootcamp? or do you have refit installed?

Just to be sure, you did burn the amd64+mac version?

sorry to revive a thread that i'm sure the original poster hasn't even looked at since creating it, but i just wanted to clear this up for the people who are encountering a similar situation and happend to find this thread in search engine.

I've never used natty, but i used maveric, on my macbook pro 7.1 which os x runs in 64bit. When i installed ubuntu on it, i used the i386 version and it worked perfectly once configured the drivers.