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Why did my new Macbook install Sierra when I mi...

I have been running a MPB 13" 2.7 ghz i5 core with El Capitan.  I got a MPB 13" 3.1 ghz i7 core with a larger hard drive and proceeded to migrate my data to the newer computer using today's freshest Time Machine backup of the earlier (El Capitan) machine system.  When I rebooted the OS was Sierra.

I do NOT want Sierra, I want to continue to run on El Capitan as i prefer it (don't want to get into why). I don't understand why the El Capitan system does not install when it was my last running system on my backup.   It's not THAT new of a machine, only slightly  (both 2015).

Is there a way to get this newer machine to "accept" my El Capitan backup and migrate not only my data but the OS of my older machine? thanks!

Hi Samantha Thailer,

See the following article for more information.

Use the Mac operating system that came with your Mac, or a compatible newer version

https://support.apple.com/en-us/HT201686

The version of macOS that came with your Mac is the earliest version compatible with that Mac.

All the best.

最后更新：2017-09-13 16:55:34

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