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I recently tried to install ubuntu on my mac, and all went well until I tried to boot up again.

It only shows the one hardrive (windows) and the primary hardrive (Macintosh HD) will not show up when I boot and press ALT.

The drive is perfectly visible in ubuntu itself, just not visible when booting up.

Any ideas what the issue is and how I resolve this?

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closed as too localized by Luis Alvarado Apr 9 '13 at 1:44

This question is unlikely to help any future visitors; it is only relevant to a small geographic area, a specific moment in time, or an extraordinarily narrow situation that is not generally applicable to the worldwide audience of the internet. For help making this question more broadly applicable, visit the help center. If this question can be reworded to fit the rules in the help center, please edit the question.

What steps did you take to install ubuntu on your mac? –  Justin Mar 16 '12 at 21:13
You probably installed Ubuntu over your Mac OS. You should post us your partitions. Make a screen shot in GParted or Disk Utility. Even if you did install Ubuntu over MacOS, you can still re-install, or create a new partition and install there. As for the data you might have has there...I am afraid it is lost (if indeed you did what I suspect.) –  bioShark Mar 16 '12 at 21:24
The screen shots that @bioShark is asking for can be fetched via command-line if you need extremely specific instructions. Press CTRL+SHIFT+T to bring up a terminal and type sudo fdisk -l (enter) followed by your password (enter). If you want to copy that text into your question, indent each line with 4 spaces to format the text as fixed width. –  Huckle Mar 17 '12 at 2:10
This question appears to be abandoned and unanswered, are you still looking for an answer? If this question no longer applies then you can either delete it or answer it yourself if you've solved the problem. Thanks! –  Eric Carvalho Apr 5 '13 at 2:17

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