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how long should it take to download/install macOS Mojave?

How long should it take to download/install macOS Mojave on a 13" macBook Air?

MacBook Air (13-inch, Early 2015)

Posted on Sep 25, 2018 4:08 PM

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Question marked as Apple recommended

Download will depend on internet connection.

But for me 6gb was about an hour


The install is about 30 minutes or so.


Suggest you run onyx before installing to clean up system.


I did that on 2nd computer and it installed without any hitches.

1st computer it hung at 16 min left.


rebooted and was ok

Posted on Sep 26, 2018 2:57 AM

9 replies

Sep 26, 2018 8:27 AM in response to donofmonroe

I booted into Recovery, and ran Disk Utility First Aid on the boot drive. I allowed one last Time Machine backup. The 6GB download took about 14 minutes, and the trouble-free installation took another 30 minutes or so. My Internet connection averages 76Mbps. Traceroute shows that I am 9 hops from Apple, though I am over 2300 miles away.


I absolutely never run Onyx or any other tool on my Macs, as they run perfectly without it, or any other so-called cleaning tools.

Oct 21, 2018 4:45 AM in response to donofmonroe

I have a download speed of 95.4 mbbs (speedtest), and I've got 5.45 gb out of 6 completed, and I started yesterday afternoon. So I am in hour 17 with probably a few hours to go. This must be because it's the weekend and everyone is getting around to downloading it?? It's not my macbook, which is about 12% filled (I'm more an ipad/iphone user and use my macbook for very little besides watching Netflix). Any thoughts - could I have down anything differently?

how long should it take to download/install macOS Mojave?

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