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I have a Mac Mini Server 2011, which has 2 Hard disks of 750GB each. I want to install Windows 7 on the second disk, but i want to split this disk on two partitions: One of 450 GB for Windows and one of 300 GB with exFat to share data between Windows and OS X (is Lion by the way).

I tried with the Bootcamp assistant, but it took for the Bootcamp partition the whole disk, and so I installed that way, but I prefer to have both partitions as I mentioned above.

Can I split it the way I want? I don't mind if I have to reinstall Windows as long as I have the best compatible solution for this.

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Open Disk Utility and format second HDD with Partition Map Scheme to be Master Boot Record. Then start up from Windows Install Disk by pressing Alt or C and create partitions from there.

You should probably use Bootcamp Assistant before (or after) just to save Windows drivers and Bootcamp taskbar utility to the flash disk or elsewhere.

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Should work without problems, but didn't try: Open Disk Utility. Create two partitions, an exFAT-partition and a mac-partition. Then, start bootcamp assistant and use the mac partition to install windows.

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This doesn't work. On boot camp assistant, when I choose the disk, the only available options are: "Erase disk and create a single partition for Windows" and "Restore Disk to Single Mac OS Partition" – DkAngelito Nov 4 '11 at 22:37
Did you try resizing the windows partition in Windows 7 (rightclick on computer -> Manage -> Disk Manager), rebooting to Mac OS and creating the exFAT partition in disk utility? As far as I read from a guide on macrumors this should be possible. – Jens Erat Nov 4 '11 at 22:47
With the Disk Manager in Windows you can't resize an existing partition. You can delete them, and make new ones, but no resize them. – DkAngelito Nov 4 '11 at 23:00
@DkAngelito you're wrong, since XP you can make them bigger, since Vista also shrink it. – Jens Erat Nov 4 '11 at 23:04
Well, I didn't know that I could shrink a partition in the Device Manager. I'll try it and let you know. – DkAngelito Nov 4 '11 at 23:19

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