13 Replies Latest reply: Jul 13, 2014 7:21 PM by MacPcConsultant
MacPcConsultant Level 1 (5 points)

Have a used MacBookPro from 2010 (2.66 GHz  i7, 8GB RAM) with many installed apps (such as CS5 Suite and Logic Pro X).  This laptop was upgraded to 10.9 prior to my purchase.    Some parts of Adobe CS5 and Logic programs are not working properly and/or updating properly.   Maintenance programs have been run and there are still problems.

 

I'd like to reduce/downgrade the OS to less than 10.9.    Will a "downgrade" from 10.9 to 10.7 or 10.8 be permitted and successful ?

 

 

Thank you.

  • Melophage Level 5 (7,130 points)

    MacPcConsultant,

     

    you can’t downgrade the installed OS, but you could erase the internal disk, reïnstall its original version of Mac OS X (either 10.6.3 or 10.6.4) from its grey Mac OS X Install DVD, reïnstall its iLife apps from its grey Applications Install DVD, run Software Update to get it to 10.6.8, and then optionally upgrade to 10.7 or 10.8 and run Software Update again to get to 10.7.5 or 10.8.5 respectively.

     

    You should have received two grey Apple installation DVDs when you’d purchased your MacBook Pro. If you didn’t receive them, contact Apple directly to purchase a replacement pair. (They’re not available in the Apple stores.) The Applications Install DVD also has your MacBook Pro’s Apple Hardware Test.

  • MacPcConsultant Level 1 (5 points)

    Has anyone tried to downgrade ?    So you are referring to using the recovery partition to reinstall the original OS ?    

  • Grant Bennet-Alder Level 9 (56,674 points)

    It checks the installed version, and won't do a "downgrade" as long as there is evidence that it was running a later version. To do what you want to accomplish, you will need a BLANK drive. Remember that the Mac will boot from any attached drive, internal or external. USB, FireWire, whatever.

     

    If you have an Installer on a [USB] Stick or an Installer on a Dual-Layer DVD --- that device can be used as a stand-alone Booter/Installer. And the MacBook Pro model you are talking about MAY boot from a "Full Retail" 10.6.3 Installer/Utilities DVD (which in itself gives you an alternate "place to stand" while you perform this operation. If it will Boot the "Full Retail" 10.6.3 DVD, it will Install.

  • Melophage Level 5 (7,130 points)

    MacPcConsultant,

     

    So you are referring to using the recovery partition to reinstall the original OS ?  

     

    no, I’m not. I did not refer to using the recovery partition at all, because your model MacBook Pro originally came with a version of Mac OS X which didn’t support recovery partitions. You will need to erase your internal disk and use your MacBook Pro’s grey Mac OS X Install DVD to reïnstall its original version of Mac OS X.

  • Grant Bennet-Alder Level 9 (56,674 points)

    The various versions of Recovery_HD are tagged with Mac OS X version numbers as well. If you are using Recovery_HD on the Internal drive, it will not downgrade, because it sees its own version and will not install lower.

     

    You really do need a BLANK Drive, and that means you need to boot to another source of software to have a place to stand while you do the Install. OR, Install on a different drive.

  • MacPcConsultant Level 1 (5 points)

    This 2010 laptop has a Toshiba 2010 500 GB internal hard drive which has a Mavericks recovery partition.

  • Grant Bennet-Alder Level 9 (56,674 points)

    A Mavericks recovery partition can be used to re-Install 10.9 Mavericks.

     

    It will not install anything older.

  • OGELTHORPE Level 8 (45,157 points)

    Grant Bennet-Alder, greetings:  A 2010 can have Snow Leopard installed over a later installed OSX version (10.7+) using the original installation disc.  The retail Snow Leopard will not work on a 2010 MBP.

     

    Ciao.

  • benwiggy Level 4 (1,245 points)

    MacPcConsultant wrote:

     

    Some parts of Adobe CS5 and Logic programs are not working properly and/or updating properly. I'd like to reduce/downgrade the OS to less than 10.9.    Will a "downgrade" from 10.9 to 10.7 or 10.8 be permitted and successful ?

    Adobe CS5 and Logic Pro X should both work without problem under Mavericks. In fact, Logic Pro X needs 10.8.4 or better to run. So your problem is not due to the OS and downgrading may not improve matters.

    Do you still have the installer Disks for  Creative Suite?  You might want to reinstall it. You can also download Logic Pro X from the Mac App Store again.

     

    Of course, your problem may be because of some other software you've installed.

  • Melophage Level 5 (7,130 points)

    MacPcConsultant,

     

    This 2010 laptop has a Toshiba 2010 500 GB internal hard drive which has a Mavericks recovery partition.

     

    if you would like to downgrade from Mavericks, you’ll need to completely erase your MacBook Pro’s internal hard drive, including its Mavericks recovery partition. Snow Leopard (Mac OS X 10.6), your MacBook Pro’s factory installed operating system, does not have recovery partitions, but Lion (Mac OS X 10.7) and Mountain Lion (OS X 10.8) do; if you upgrade from Snow Leopard to either Lion or Mountain Lion, your internal hard drive will receive the appropriate recovery partition.

  • MacPcConsultant Level 1 (5 points)

    Doesn't seem that CS5 is always a walk in the park:  https://forums.adobe.com/message/3079247

  • benwiggy Level 4 (1,245 points)

    That thread is dated 2010 and people are talking about problems running CS5 on 10.5 and 10.6. 

    Is it the same problem that you are having?

  • MacPcConsultant Level 1 (5 points)

    Yes.   Having problems with several  Adobe apps.  Many threads on these problems.