Lion refuses to be installed to any partitions on Mac

Posted by Arafinwe on Super User See other posts from Super User or by Arafinwe
Published on 2011-11-30T01:40:49Z Indexed on 2011/11/30 1:55 UTC
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I was attempting to install Lion on my MacBook 7-1, on which I have installed Ubuntu 10.04 on a separate partition. Currently, my partitions look like this:

|-----Mac-----|-Grub-|----Ubuntu----|-Ubuntu Swap-|.

However, Disk Utility (and I assume the rest of Mac OS X) sees it as

|-----Mac-----|-----Unknown-----|.

Note that I am using rEfit as my default bootloader. When attempting to install Lion, I am greeted by this screen:

Install Mac OS X. Macintosh HD cannot be used to start up your computer. Untitled is locked.

By the way, it appears that only the Grub partition is recognized, as I remember setting it to about 10 MB.

Can anyone help with this?

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