[elchubi]

I did it as follows:

1- Partitioned SSD (32 GB) with OSX installer
HFS+ 15GB (OsX), FAT32 128MB (Linux swap), FAT32 150MB (Linux /boot ), FAT32 13 GB (Win 7)

2.- Installed Linux according to my post @ http://www.mydellmini.com/forum/viewtop ... 319#p60319 (swap partition was reformated as swap, /boot partition was reformated as ext3)

3.- Installed Mac OS, according to several guides (dellefi1.2a5)

4.- boot to linux, install gptsync (<code>sudo apt-get install gptsync</code>). run it <code>gptsync /dev/sda</code>

5.- boot with win7 install disc, erase /boot partition (this will only affect the MBR table, that's the trick). Install windows 7 to last partition (reformat it to NTFS)

6.- boot to win7, make partition 2 (osx) active with diskpart

7.- boot with this bootloader I crafted http://www.mydellmini.com/forum/viewtop ... =23&t=7293 to OsX, reinstall dellefi1.2a5 bootloader

8.- enjoy your triple booting system

[elchubi]

later today I will post a picture of how disks are seen on each system

[elchubi]

[attachment=2:1lb0elk9]MacOs.png[/attachment:1lb0elk9]

[attachment=1:1lb0elk9]Linux.png[/attachment:1lb0elk9]

[attachment=0:1lb0elk9]Windows.png[/attachment:1lb0elk9]

[RobD]

Looks good, except it looks like you are installing Ubuntu to an SD card. I've got enough room on my SSD for a triple boot, so I'd like to try doing everything on the SSD.

What I just do something like this?

Boot OSX and make drives:
Partition 1 - OSX (26GB HFS+)
Partition 2 - Ubuntu swap (2GB FAT32)
Partition 3 - Ubuntu / (5.4GB FAT32)
Partition 4 - Win7 (24GB FAT32)

I just wonder about step 5 where you erase the /boot partition. That is now the / partition, and would wipe out the entire Ubuntu. Would it be better to do something like this?

Partition 1 Primary - OSX (26GB HFS+)
Partition 2 Primary - Ubuntu /boot (150MB FAT32)
Partition 3 Primary - Win7 (24GB FAT32)
Partition 4 Extended:
Ubuntu swap (2GB FAT32)
Ubuntu / (5.2GB FAT32)

[elchubi]

That works if you are using MBR partition type as you are limited to only 4 partitions of each type (7 maximum)
The beauty thing in GUID is you are not limited to a number of partitions. On step 5, about deleting the / partition is from the MBR table not the GUID one, so as long as you don't touch that FREE space on Windows Ubuntu will be there.

[jcocci]

How did you get the windows install to work? I am trying a slightly modified version of this where I am just installing OSX and XP. Every time I go to install XP I end up with the error message about the hal.dll file missing or being corrupt. This has something to do with the MBR doesn't it?

[elchubi]

Are you using guid or mbr?

How is partitioned your disk?

Are you gptsyncing?

[jcocci]

Originally Posted by elchubi

Are you using guid or mbr?

How is partitioned your disk?

Are you gptsyncing?

GUID

32gb Runcore, 6gb fat32 for XP, remainder HFS+ for OSX

No I am not using gptsyncing.

[jcocci]

Originally Posted by elchubi

Are you using guid or mbr?

How is partitioned your disk?

Are you gptsyncing?

OK, after reading you instructions again and reading about gptsync I think I see where I am going wrong. I'll see if I can get it to work. I thought that had to do with installing Linux which I am not going to do, but I do have unbuntu installed on a usb disk, hopefully I can make that work.

[Joey Link]

This is great, but I'm still too dumb to figure it out. Any chance of a more detailed write-up? I too would like to install Ubuntu on the hard drive.