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  1. #1


    Member Since
    Feb 23, 2012
    Posts
    9
    Specs:
    Currently Running Mac OSX ML 10.8
    Mac OSX Mountain Lion Developer Preview
    Who downloaded the new OSX ML 10.8 Dev. Preview?? I downloaded it and its running so smoothly on my iMac 21.5-inch late '09!

  2. #2


    Member Since
    Jan 22, 2010
    Location
    Victoria, BC
    Posts
    20,911
    Specs:
    Mid-2012 MBP (16GB, 1TB HD), Monoprice 24-inch second monitor, iPhone 5s 32GB, iPad Air 2 64GB
    Since it is limited to developers, not many people will have downloaded it. Also, it's full of bugs.

    Hope you have good backups!

  3. #3


    Member Since
    Feb 23, 2012
    Posts
    9
    Specs:
    Currently Running Mac OSX ML 10.8
    Quote Originally Posted by chas_m View Post
    Since it is limited to developers, not many people will have downloaded it. Also, it's full of bugs.

    Hope you have good backups!
    Yes it absolutely does have allot of bugs! But It has been running very smoothly for me and it hasn't been giving me any trouble! But there are apps that do not open! Little snitch, ScreenFlow, Xcode for Lion, and Parallels do not open! I guess I'm stuck with it until it comes out this summer. But no worries, I only use my iMac for music and internet, not that much important info.

  4. #4

    Sharpshooter's Avatar
    Member Since
    Sep 07, 2009
    Location
    Oklahoma
    Posts
    36
    Specs:
    Macbook Pro Core2 Duo 4Gb Ram / Powermac G5 2 TB RAID , 16GB Ram Running Leopard
    Yep it is full of bugs, I installed it today after having a new larger hard drive installed in my Mac Book Pro and I lost everything when the installed failed. Fortunately I have my original hard drive and will see if I can get it cloned back on to the new one. I should have known better and performed a time machine backup before doing so.
    "All great change in America begins at the dinner table."-Ronald Reagan

  5. #5


    Member Since
    Dec 25, 2011
    Posts
    35
    Quote Originally Posted by Mr.MacOSX View Post
    Who downloaded the new OSX ML 10.8 Dev. Preview?? I downloaded it and its running so smoothly on my iMac 21.5-inch late '09!
    I'm currently downloading it. is it possible to install the OS on an external (USB) HDD? If then, are there any possibilities that the new os installation could mess up my current (Lion) installation?

  6. #6

    Sharpshooter's Avatar
    Member Since
    Sep 07, 2009
    Location
    Oklahoma
    Posts
    36
    Specs:
    Macbook Pro Core2 Duo 4Gb Ram / Powermac G5 2 TB RAID , 16GB Ram Running Leopard
    Quote Originally Posted by dacoolest View Post
    I'm currently downloading it. is it possible to install the OS on an external (USB) HDD? If then, are there any possibilities that the new os installation could mess up my current (Lion) installation?
    Yes see my above post ! It could mess up your current install. I'm not sure about placing it on external media as I was not given that option.
    "All great change in America begins at the dinner table."-Ronald Reagan

  7. #7


    Member Since
    Dec 25, 2011
    Posts
    35
    Quote Originally Posted by Sharpshooter View Post
    Yes see my above post ! It could mess up your current install. I'm not sure about placing it on external media as I was not given that option.
    Thanks for the reply. But I proceeded with the installation on the external HDD and currently both my Lion OS and the Mountain Lion works perfectly.

    Even though ML is running off an external media still I see a performance improvement. graphics seems to be a bit more smoother than Lion

  8. #8

    cwa107's Avatar
    Member Since
    Dec 20, 2006
    Location
    Lake Mary, Florida
    Posts
    26,926
    Specs:
    15" MBP, Core i7/2GHz, 8GB RAM, 480GB Crucial M500 SSD
    I'm going to close this thread.

    OS X 10.8 (Mountain Lion) is under development at the time of this writing. Although there is a "Developer Preview" available, it is not a "public" beta, and therefore not open to ordinary users. Developers who are officially registered with Apple and eligible for this beta have their own support forums and discussion areas where they can discuss the product without violating the limitations of their agreements with Apple.

    As such, we won't be allowing this kind of discussion until 10.8's eventual release later this year. Thanks for understanding.
    Liquid and computers don't mix. It might seem simple, but we see an incredible amount of people post here about spills. Keep drinks and other liquids away from your expensive electronics!

    https://youtu.be/KHZ8ek-6ccc

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