[Macpartners] Apple macOS Sierra 10.12 release

[Isaac E Meister]

In my experience, starting in mid-2015 the Apple hardware I purchased started refusing to boot even minor versions of OS X if the purchased hardware had shipped with a later version (that is, hardware that shipped with 10.11.2, say, would not boot 10.11.1). So it is a safe assumption that hardware shipping 10.12(.0) will not boot 10.11(.6). That is certainly how I’m planning for my DLC.
--
Isaac Meister
IT Desktop Support Specialist, MIT Kavli Institute
+1 617 253-7517 (office) • +1 617 312-3262 (mobile)




> On Sep 20, 2016, at 14:47, Teddy Thomas <tthoma24 at mit.edu> wrote:
> 
> Timothy-
> 
> It is my understanding that there is nothing different about macOS Sierra with regard to downgrading to an older version of macOS. Previous versions of macOS have always been able to be installed on any Mac, with the caveat that you must do a clean install from bootable media and restore data from a backup. Can you cite a source stating differently? Any clarification is much appreciated. Thanks in advance.
> 
> -Teddy
> 
>> On Sep 20, 2016, at 11:00 AM, Timothy Yager <tyager at mit.edu> wrote:
>> 
>> Good morning,
>>  
>> Today Apple releases its latest operating system, macOS Sierra (10.12). Please note that soon all Macs purchased from Apple will come with macOS Sierra preinstalled; previous versions of OS X cannot be installed. This email provides information for those considering an upgrade to the latest OS release. 
>>  
>> What’s new
>> http://www.apple.com/macos/sierra/
>>  
>> Before you upgrade to macOS Sierra
>> •    Before performing any upgrade, always back up your computer using CrashPlan or the backup system provided by your local IT support provider (e.g., local Time Machine backup).
>> •    Go to the macOS Sierra Known Issues page on the IS&T Software Grid to check for software compatibility. Staff should consult with their department’s IT support provider to determine when to upgrade. 
>> •    MIT-owned machines should be upgraded by downloading macOS Sierra from the Apple App Store or via Casper for managed Macs. 
>> •    Personally owned machines can be upgraded via the Apple App Store.
>>  
>> Upgrade Resources
>> •    Documentation on how to upgrade to macOS Sierra via the Apple App Store
>> •    Documentation on how to upgrade to macOS Sierra via Casper for managed Macs
>>  
>> Hardware Requirements
>> •    Any Mac capable of running OS X 10.7.5 or later
>> •    2GB of memory
>> •    8.8GB of available storage
>> •    More info from Apple, including models: http://www.apple.com/macos/how-to-upgrade/#hardware-requirements
>>  
>> If you have questions or need assistance, please contact the IS&T Service Desk at helpdesk at mit.edu or 617.253.1101. You can also submit a request online.
>> _______________________________________________
>> Macpartners mailing list
>> Macpartners at mit.edu
>> http://mailman.mit.edu/mailman/listinfo/macpartners
> 

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