Problems upgrading to macOS Mojave on MacBook Pro 2018

As macOS Mojave was released today, I thought I would try to upgrade my 15" MacBook Pro 2018 to the latest software. However, when I'm running the installer, after around 2-3 minutes I get an error message that a problem has occurred, with no solution in sight. I have tried to reboot, turn it on and off, updated without internet etc etc, nothing works. This is the error message I'm getting (in Swedish):


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MacBook Pro (15-inch, 2018), macOS High Sierra (10.13.6)

Posted on Sep 24, 2018 12:20 PM

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Posted on Sep 29, 2018 2:01 AM

It seems that many people have gotten confirmation from Apple that this is an issue with the T2 chip.


I would STRONGLY advice you to stay on whatever OS you are running now, do NOT try to install Mojave or reinstall the OS you are running. Even the people who have gotten it to work are experiencing several bugs with Mojave. If I were you, I would wait until Apple releases a patch for the OS so that it works with the new MBP:s. Thanks for all the insight everyone!

480 replies

Sep 29, 2018 5:52 PM in response to dmauch

I asked a friend of mine I know on the other platform to post here and see if he could help. I don't know what his name is on here, but he has newer Macs in the range of the ones having issues here. He was also a beta tester, both public and developer, and he hasn't had any issues. Maybe he'll see my posts and reply since He knows I'm over here now.


I would like to be more help, but I don't own the newer Macs. The newest is the late 2015 iMac, and is probably my last Mac, I'm not happy with the direction Apple is going with hardware, and I only still use them for their software at this point.


(This coming from someone who has followed Apple since the 80's through now). Using products from the Apple II through the Mac.

Sep 29, 2018 6:03 PM in response to iFrog41

Yes. It does. Also bit that it matters, I’m on the public beta for iOS and I tried to install Mojave under the beta.apple.com with the profile. But I don’t get the software update option in applications. Probably cause the beta is over and there isn’t a beta release yet for Mojave.


But rather then pulling my hair out. I’ll just wait

Sep 29, 2018 6:07 PM in response to richsark

It's your choice to wait, but There is a Mojave beta out. Version 10.14.1, I installed it the other daly. You have to go into system preferences, and to software update to get system updates now.


From what I have seen though, currently it adds back Group FaceTime that was removed in earlier betas. The iOS 12.1 beta also adds it back for iOS devices.

Sep 29, 2018 6:19 PM in response to dmauch

dmauch, You think, you're angry and frustrated now. There are reports of Apple in a few years possibly moving the Macs to their on processor as well, like the iPhones, and iPads, and other units. That's some change I'm not looking forward to. We'll just have to wait and see, but there have been various reports of it coming.

Sep 29, 2018 6:24 PM in response to Allan Eckert

Well that’s just great Allan. Kind of like playing the lottery, uh? We all shell out the money and for some of us, we win, and others, we lose. Great business model - don’t you think? It’s completely unacceptable and after buying Apple products now for over 3 decades, it looks as though the High Sierra’s will be my last journey before dying of thIt’s in their Mohave.

Sep 30, 2018 5:26 AM in response to picklebreath

The only thing I would say is installing TM from NAS can be very time consuming.


Though a keep a NAS backup I have always done backup from a USB 3 HD.


Also when it asks what you want transferred from your account let it populate all the fields with files/apps/network settings before proceeding.


You will only get a partial restore if you do not wait until calculation has finished.

Sep 30, 2018 5:36 AM in response to iFrog41

For me I have a lot of mailbox and huge amount of data on mac.


TM puts that all back in place.


I did have issue earlier in year but that was trying to use NAS as TM source.

And my USB 3 external drive had multiple (weekly backups for 6 months or so) it did not like that too much.


I was migrating to machine I have now 2017 MBP, but still had old MBP so I created a fresh TM back up and migrated that first go without issues.

Sep 30, 2018 5:41 AM in response to Robin Bonathan

Understood. I Primarily use Gmail, and iCloud, so both are iMAP services, so no reason to back up email as it's stored in the cloud. With that said, I usually just save my documents, (including Virtual Machines) and anything specific that can't be recreated on the new install without a lot of time and effort. then I just restore the items back to the appropriate places, and I'm good to go, usually takes about an hour, maybe 2.

Sep 30, 2018 6:13 AM in response to dmauch

dmauch, You might be experiencing something called "RAM Creep". It's where one or more modules have become improperly seated. To check, disconnect iMac after shutting down, lay it on a towel or on a bed display down, open the RAM door on the back, take out the DIMMS, and reseat them. close up the Mac and see if those memory messages go away. RAM creep can be caused by improperly seated RAM, or the process of heating and cooling for them to come loose. Also, keep in mind, if you've upgraded your RAM to a third party manufacture, and it's NOT the stock Apple RAM, iMacs can be extremely sensitive to damaged, or incompatible RAM. If you are using Apple's Stock RAM, and reseating doesn't fix, I would make a genius appointment and have them check for bad RAM. You could do this at home with diagnostic tools, but it depends on how down and dirty you want to get in diagnosing your problems.


Also, if you're iMac is under warranty, while testing the RAM yourself at home, won't void the warranty, taking it in should get you a free RAM replacement, if it's damaged.

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Problems upgrading to macOS Mojave on MacBook Pro 2018

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