Skip navigation

Why can't I install mountain lion on OSX 10.6.8 MACBOOK PRO?

6115 Views 17 Replies Latest reply: Dec 3, 2012 11:54 PM by Csound1 RSS
1 2 Previous Next
njones13 Calculating status...
Currently Being Moderated
Nov 29, 2012 5:50 PM

I downloaded the mountain lion install app and now i can't install it I get the "This disk cannot be used to startup your computer" error when I try and install. If i back out to the main install page and try it again then i get this error "OSX cannot be installed on Macintosh HD". I have read similar posts and done appropriate responses such as verifying and reparing the HD. I have a Time Capsule that I backup to and I've tried disconnecting from it and ensured its not backing up during my attempts to install. Nothing seems to work. HELP!!!!




Computer Stats:

Early 2009 13" Macbook Pro

Model identifier: macbookpro 5,5

ram: 8GB

HD space available: 60GB

Processor: Duo core 2.53


Nothing out of the ordinary. I don't have any crazy setups, pretty much straight out of the box.

1 2 Previous Next


More Like This

  • Retrieving data ...

Bookmarked By (0)


  • This solved my question - 10 points
  • This helped me - 5 points
This site contains user submitted content, comments and opinions and is for informational purposes only. Apple disclaims any and all liability for the acts, omissions and conduct of any third parties in connection with or related to your use of the site. All postings and use of the content on this site are subject to the Apple Support Communities Terms of Use.