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  1. #1

    Member Since
    Sep 06, 2008
    13" MBP - 2.7 Ghz, Intel Core i7, 8GB RAM.
    Can I downgrade from Mountain Lion?
    I want my music studio's iMac to run Pro Tools 8. I'm new to it and learning a lot from my producer, who only works in version 8. I have 8 installed myself, but upgraded to Mountain Lion for iCloud, etc. without knowing they weren't compatible. So because staying in PT8 is so important to me, can I downgrade my iMac (mid-2011 with Mountain Lion) to Snow Leopard?

    Last version compatible with PT8 was OS X 10.6.7. Thanks.

  2. #2

    cradom's Avatar
    Member Since
    Feb 14, 2004
    Groves, Texas
    21in. iMac 10.11 --- HP Linux Mint 18
    Since you 'upgraded' to Mountain Lion, yes, you can downgrade to whatever your mac came with from Apple. You do know this pretty much requires a wipe and install from scratch right? Got a good backup?
    Any priest or shaman must be presumed guilty until proved innocent.

  3. #3

    pigoo3's Avatar
    Member Since
    May 20, 2008
    2011 13" MBP 2.3ghz, 8gig ram, OS 10.8.5
    Yes you can downgrade to an earlier version of the Mac OS (depending on your MBP model)...but it is a pain in the butt.

    - Nick
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  4. #4

    osxx's Avatar
    Member Since
    Jan 19, 2008
    houston texas
    09 MBP 8GB ram 500GB HD OS 10.9 32B iPad 4 32GB iPhone 5 iOs7 2TB TC Apple TV3
    The problem with going back to earlier builds is at some point you are left behind when other APP's you want or need requires a current OS like having the latest iTunes so things will work with iPhone/iPad and some apps that are in the App Store.
    Wonder if you could partition the drive and run the older OS in there someone correct me if not possible.
    Also if your machine dies and you have to purchase a new one there is no going back to earlier releases than what came on the Mac.

  5. #5

    Stretch's Avatar
    Member Since
    Jan 13, 2007
    Central New York
    15in i7 MacBook Pro, 8GB RAM, 120GB SSD, 500GB HD
    Quote Originally Posted by osxx View Post
    Wonder if you could partition the drive and run the older OS in there someone correct me if not possible.
    Yes you can, some developers do this. I actually have an external hard drive with 10.6.8 on it for my MBP that I can boot up for when I want to play my older Rosetta games like Call of Duty and Sim City 4.
    Blog and Photo Gallery:

    Currently running OS X 10.10

  6. #6

    Slydude's Avatar
    Member Since
    Nov 15, 2009
    North Louisiana, USA
    2.8 GHz 2008 MacBook Pro 10.11, 8 GB mem, iPhone 8+, 2015 iMac 16 GB 10.13 beta
    @OP If you have a clone of the earlier OS it is relatively easy to go back to it otherwise Nick's right it's a pain.

    OSXX's suggestion of partitioning the drive and having two different OS versions installed is one solution. There are a couple of things to keep in mind if you are contemplating that option:

    1. You can't generally go further back than whatever OS was included on the computer.

    2. AS OSXX suggested you need one partition for each different version of the OS.

    3. When changing from one OS to the other you will need to reboot the Mac.

    4. Not really familiar with Logic so the following may be a moot point: If logic stores some of its temporary /scratch files on the same partition as the program make sure you leave enough space on the partition for those files. Keep in mind that's over and above the normal swap file space OS X needs

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