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

Oct 5, 2018 1:41 PM in response to dmauch

dmauch, I am so sorry you had to go through that again! What I wanted you to try was supposed to completely avoid that because it wasn't supposed to cause any damage to the host.


After hearing people talk on this thread and the experiences they've had. I thought people here would naturally understand how to set up a virtual machine. At least I'm glad you tried.

Oct 5, 2018 1:53 PM in response to iFrog41

No, No iFrog - I very much appreciated your suggestion and I believe I was close but simply may have done it incorrectly. I 1) installed the trial version of Fusion 11 Pro, 2) loaded it from the dmg, 3) and it the icon showed up fine on my High Sierra desktop. 4) I then downloaded the Mojave installer from the App Store and 5) installed it on the only option showing - the Mac HD. 6) I then opened Fusion 11, 7) created a virtual device and 8) and assigned it a hard drive from the It’s provided called Mac OS 10.14. 9) I tried opening it and it kept telling me that i couldn’t find a start up disk. At that point I felt that I was getting in a little deeper than I should and was tired after a long week on all of this - so I decided to just simply restore High Sierra. The problem is I lose all connectivity as soon as Mojave is installed and so that limits what I can do.

Oct 6, 2018 8:50 PM in response to Kladdy

I have a 2018 iMac with 32GB of memory and a fusion 2TB drive. I upgraded to Majave and for the past week have not been able to get my system to work. I took it in to the Apple store twice and they ran hardware, software and stress test diagnostics reinstalled the OS twice, reformated the drive twice then reinstalled the OS a third time. It seemed to work the last install, but I got the unit home and started a recovery of my backup and the system is no longer functioning like an apple. It is locked up with the apple logo and a progress bar stuck. This is after a 20 hour run to recover the date from my timemachine back up. I think I am locked into Microsoft **** rather than Steven Job's Apple.

Oct 7, 2018 5:48 AM in response to donjones777

It sounds as if, as I did, you purchased in 2018, the “latest” iMac available - a “2017” model. The 2018’s have not been introduced by Apple as of yet. That said, if you read the various posts on this thread over the last several days since the introduction of Mojave, you’ll find that there are major issues across multiple devices including the iMac. It’s more than likely that the Apple stores are simply trying to assuage customers frustrations with the hope that the engineers are expediting a patch(es). In the meantime, you’ll be “grinding your gears,” if you expect Mojave to work satisfactorily. Patience!

Oct 7, 2018 6:20 AM in response to lec0rsaire

True about the restore from timemachine backup. I just finished a 21 hour restore and the machine is totally frozen up at the Apple logo and progress bar. Ran over night in this condition and no change. The OS is a worse than Microsoft. Where is Steven Jobs when you need him. Apple engineering is quickly dissipating into a philosophy of get it out the door regardless of stability.


Cook should understand that staying with Apple' prior strategy of high quality, high stability, high reliability is the reason people are willing to pay for expensive products. I really hope this is not a vision of things to come from this once amazing innovative technology company.


Mr. Cook... where is the old Apple innovation? Where is the old Apple quality... perhaps you should spend less time on social and political issues and focus on the core business vision that the founder so brilliantly put in place.

Oct 7, 2018 7:55 AM in response to dmauch

That's all I was saying, use what works for now, wait for apple to come up with a solution.


As you know I've been able to run Mojave without issues, and I can plainly tell you, that unless anyone has a excessive desire for the enhanced dark mode, or dynamic wallpaper, there isn't much in Mojave they're missing over high Sierra.


There are the additional editing features and camera features, but how many people will use those on a daily basis.


Just trying to take some tension off those who might think they are missing something major, not being able to upgrade. Not really.

Oct 11, 2018 10:11 AM in response to iFrog41

Was just wondering the same iFrog. Apple’s silence has been deafening. I haven’t gone near Mojave since my 6th and last upgrade try and am running HS which is working fine. I have no intention of touching it at this point and expect that if a fix is not forthcoming in the next few weeks, will take my iMac in and ask for a swap.

Oct 11, 2018 10:17 AM in response to dmauch

Well, initially, you were wanting to return the iMac, and since I hadn't heard anything from you, was wondering if you had. I've been keeping an eye out for any articles from Apple regarding the issues, but nothing has come out.


The main stuff I see is the usual about the iPhone, and other things I have no interest in. I've been keeping an eye out for any complaints on the RIC channel I'm a moderator on, and nothing. In fact, other then the people here on this thread, that I was curious about, everyone else seems to be enjoying Mojave, and how problem free it's been for them.

Oct 11, 2018 10:29 AM in response to dmauch

Everyone else I've had contact with, other then on this thread.


Which the majority would be from the Freenode IRC network.


The main differences are, this is a forum for the average user, where as Freenode is more of a developer oriented environment, so unless there are any software developers on this thread, it's a different crowd and environment.

Oct 11, 2018 11:48 AM in response to iFrog41

Correction on my part. I stated earlier in this thread that I had performed a "clean install," of Mojave. That was incorrect - rather all of my attempts including the ones while working with Apple senior advisors were all based on downloading the installer from the App Store and then running the installer. That said, I'm wondering how safe/practical it would be for me to perform a clean install and then use Migration Assistance from TM on My Passport for Mac to bring in my data, passwords, and apps. Any advice here from anyone?

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Problems upgrading to macOS Mojave on MacBook Pro 2018

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