recover a de-allocated mac OS X parition? [solved..]

tsinghoi · n00b Joined: 28 Sep 2005 Posts: 15

I wanted to install gentoo on my laptop which I got pretty recently. I havent installed gentoo for a year or so and I saw that it now has an installer!! so I eagerly went to test that out. Well things didnt seem to work and I decided to hit install anyways and I get an error. I restart and yay. no more OSs on my laptop!

Anyways my original hard drive layout was Windows on the first partition (NTFS) and then OS X 86 on the second partition (HFS?). I resized windows and made it smaller by 10 gb. Then I ran the installer and stuck my extended parition in between the mac and windows paritions and stuck my linux paritions as logical partitions inside. Well after I hit Install, it ran for a few seconds and then gave me an error. When I rebooted, Acronis OS selecter couldnt find the mac OS and windows wasnt even booting to begin with. So I ran disk director and on the layout it shows my windows partition is recognisable and fine, but then it shows my3linux partitions (boot, swap, and /) as linux native, swap, and linux native, and then it shows my mac partition at the end as "unallocated". I really want my mac os x partition back, and it should still be there. So how do I repair this?

EDIT: after searching for programs online I found this thing called "testdisk." It was a lot easier than I thought it would be.

IQgryn · Posted: Wed Mar 14, 2007 8:27 pm Post subject:

If you're sure that the partition lines up exactly with the "unallocated" space, you can create a new partition there and give it the appropriate type, and it should become visible again. Parted includes a rescue mode that can try to do this for you, but I don't know if it supports OS X partitions (and it modifies everything immediately, which makes me cringe). There may be other tools as well; I have not had to look into it recently.
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