So, Ubuntu 8.04 came out yesterday. I promptly got my Mini to not boot by trying to install it using the same procedure I used for 7.10. One day later, I figured out a (small) sequence of steps that yields a working dual-boot of Leopard and Ubuntu 8.04. Here's what I did:
- Use the Leopard (Desktop or Server) install disc to re-partition the disk to 1 partition, then install Leopard.
- Install Software Updates. Needs to be done twice.
- Start up Boot Camp, and resize your OSX partition. Quit Boot Camp when it offers to start the Windows installation.
- Download and install rEFIt: http://refit.sourceforge.net/
- Make rEFIt take over the boot process (it should do that by itself but that doesn't work for me):
- Open Terminal
- cd /efi/refit
- Open Terminal
- Optionally, switch the boot default to Linux: open /efi/refit/refit.conf in TextEdit, and uncomment the line saying #legacyfirst (at the very bottom)
- Reboot and insert your Ubuntu 8.04 disc. The rEFIT screen should pop up. Don't worry if you've never seen it before. You'll notice the difference.
- Start installing Ubuntu. Choose manual partitioning, delete the big FAT32 partition that Boot Camp created (leave the EFI partition alone though), and create the root and swap partitions in the free space.
- On the last install screen, click Advanced, and replace (hd0) with (hd0,2). This is necessary so that Grub installs in the right place.
- Upon rebooting, go to Partitioning Tool (second icon in the bottom row) in rEFIt. It will offer to update the MBR to reflect the EFI partition table. Accept. Then the Mini will reboot again.
- Power off the Mini. Then power it back on. Now you can boot Ubuntu or Leopard.
Asides from getting Ubuntu to boot, rEFIt is handy because it rescues you in case something blows up. When I bricked the Mini, I was running on Apple's boot loader. rEFIt was still be able to boot OSX, even when I messed up the grub install options.
Enjoy your Mini servers :)