Skip navigation

Down grade 10.7 to 10.6, Down grade 10.7 to 10.6

484 Views 7 Replies Latest reply: Aug 26, 2013 11:37 PM by Eau Rouge RSS
ewt Calculating status...
Currently Being Moderated
Aug 25, 2013 4:04 PM

Hi guys

 

when i install 10.7 to my mac air the fan kicks in all the time so i have decided to

go back to 10.6.

 

I have restart and hold c (10.6 cd in the external cd rom) went to disk utility and erase the hard drive

 

I then restart again, it started installation and ask to select the language, after selecting, the error comes up

”this mac os cannot be installed in this computer”

 

can someone please help me out

 

thanks heaps

  • babowa Level 7 Level 7 (22,020 points)
    Currently Being Moderated
    Aug 25, 2013 5:59 PM (in response to ewt)

    So, you booted from the Snow Leopard DVD? And then used Disk Utility from the DVD to erase the drive? Then tried to reinstall the OS?

     

    Did your Mac come with Snow Leopard preinstalled?

  • Eau Rouge Calculating status...
    Currently Being Moderated
    Aug 26, 2013 3:09 AM (in response to ewt)

    The 10.6 disc is looking for a previous version of Mac OSX 10, either 10.5 (any version) or OSX 10.4.11

    if the 10.6 installer does not find a earlier version of Mac OSX 10 as mentioned above, it will not install 10.6

    so go back to your original 10.5 install disc(s) install that then install 10.6 again over that (don't erase), hopefully that will sort your problem.

     

    you could try this link for more information

     

    http://www.macworld.com/article/1142454/install_snow_leopard.html

     

    Hope it goes well

  • Lanny Level 5 Level 5 (4,165 points)
    Currently Being Moderated
    Aug 26, 2013 6:31 PM (in response to Eau Rouge)

    The 10.6 disc is looking for a previous version of Mac OSX 10, either 10.5 (any version) or OSX 10.4.11

    if the 10.6 installer does not find a earlier version of Mac OSX 10 as mentioned above, it will not install 10.6

    so go back to your original 10.5 install disc(s) install that then install 10.6 again over that (don't erase), hopefully that will sort your problem.

     

    None of this is true. You don't need to have anything installed on the disc prior to installation.

     

    You do have to use a commercial release of SL, not a Grey set of DVDs from another Mac that shipped with SL.

  • Eau Rouge Level 1 Level 1 (10 points)
    Currently Being Moderated
    Aug 26, 2013 11:37 PM (in response to ewt)

    Hi ewt

     

    looks like I did give you erroneous advice regarding Snow Leopard looking for a previous OS, so sorry about that.

    If you have the commercial release of SL it should install. If you can boot from the install disk and go to disk utility make sure the disk is partitioned to GUID partition scheme. And also the format is Mac OS Extended (Journaled).

     

    This link may make things clearer.

     

    http://support.apple.com/kb/TS1600

     

    just out of interest are you able to install the older OS 10.5 ?

Actions

More Like This

  • Retrieving data ...

Bookmarked By (0)

Legend

  • 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.