migrate time machine again Mac... then re time machine without duplicating the entire hard disk?


It should work, but it is not for me!

My MacBook Pro retina is 3 years old. Running the most recent El Capitan.  I time the Machine every day, and everything's fine.

You just bought a new MacBook Pro to replace my old.  All the information has migrated to the new machine through Migration.

Everything worked successfully, and my 'new' machine is a 'mirror' of my old.  (Finally, especially!)

But now... after a few hours I want to re-time Machine my new Mac to the same backup drive Time Machine I just migrated to.  I use about 200 GB on my Mac, and he wants to take about 2 hours and re back up everything!  But I've only added a few emails in the last 2 hours. My question - WHY Time Machine wants to fundamentally rewrite all or most of my data again?  It's all there and nothing is changed?  My current user administrator name is the same on both.

Hmmm... I saw somewhere my old mac was named Larry (2) Mac and I see it now has named Mac Larry (3).

I did that, I guess El Capitan did.  Would be - which is why he wants to rewrite all the data?

Thank you very much - I think I'm not the only one out there who has this from happening?



Hello, Larry Cohen,.

I understand the desire to have a time Machine just continue to use the existing backup with the new computer. It takes time to backup everything, and unless you erase the disc, first you'd have muliple backups on it.

This article gives the instances when you can have the new Mac inherit the backup.

OS X El Capitan: If you want a new Mac "inherit" your backup history

Best regards.

Tags: Mac OS & System Software

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