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toknormal

macrumors newbie
Original poster
Feb 21, 2011
7
1
Glasgow
Hi

I am putting a Macbook in to get a drive upgrade. The existing drive is El Capitan and the store issues the new drive with Yosemite (that's their policy - they say it's the most stable of the 3 and I can upgrade once it's on if I like).

The worry I have is that the Time Machine backup will be made with El Capitan and then they'll be using the migration assistant in Yosemite (an earlier OS) to read in the apps and data from that backup.

This doesn't seem safe to me. I always think you should go from older to newer.

Does anyone know if this is even possible ? Will Yosemite not balk when it sees the later version backup and refuse to read it ?
 

Weaselboy

Moderator
Staff member
Jan 23, 2005
34,463
16,160
California
The worry I have is that the Time Machine backup will be made with El Capitan and then they'll be using the migration assistant in Yosemite (an earlier OS) to read in the apps and data from that backup.

You are correct to be worried and this will be all messed up for the reasons you said.

What I would do is when you get the machine back, go ahead and make a dummy account and update to Sierra. Then follow this guide to remove the dummy account and make system setup run again. Then during system setup use MA to import your data and you will be good to go.
 
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