Possible Duplicate:
How do I install GRUB on a RAID system installation?

I installed Ubuntu successfully except the last step. I cannot install GRUB2 on my disk.

My disk is a Rai0-SSD. All disks are SSD, totally 512G.

That's the detail http://paste.ubuntu.com/1285121/

marked as duplicate by Tom Brossman, con-f-use, user76204, Mitch, Eliah Kagan Oct 18 '12 at 16:40

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