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):


User uploaded file

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 30, 2018 10:23 AM in response to Robin Bonathan

Have completed everything that has been suggested in this thread:


Uninstalled CleanMyMac 3

Uninstalled BitDefender

Ran Entrecheck twice - No issues/Excellent Performance

Ran Disk First Aid - No issues

Ran Disk Warrior from bootable flash drive, optimized HD to a perfect 10 which was already at 9, repaired a number of minor issues

Ran inbuilt Hardware Test - no issues

Removed and reinstalled the two DIMMS to check for "Ram Creep"

Asked Trump to have an FBI investigation into Mohave OS - (they refused for lack of corroborative witnesses)


Perhaps now I ought to leave well enough alone and wait for Apple's patch(s) since it certainly appears as though there is nothing wrong with my iMac.

Sep 30, 2018 10:52 AM in response to picklebreath

It's just a strange situation. I walked my mother who is almost 80, through upgrading her late 2013 air from High Sierra, to Mojave, and I wasn't there with her. I gave her the instructions in a text message she did it let it upgrade, and hasn't complained about any issues, or not being able to do anything. She also upgraded the iPhone I gave her without issues. So, knowing my mother is not technically inclined at all, but can follow instructions, and didn't have issues,


It does make me question how bad this issue really is. Logically if it was as bad as people make it to be, then I would have expected her to be the type of person to have issues.

Sep 30, 2018 10:57 AM in response to Robin Bonathan

As I indicated much earlier in this thread, I had long conversations with three different Apple tech’s - one who was a “senior tech advisor,” who promised to call me back in 20 minutes and it took seven hours - the result of high was absolutely nothing! The two, didn’t have a clue - I was more well-versed in Mac’s then they were - in fact one of them lamented that he had been “out of the loop,” and was “just getting back from a few days off.” Teriffic!


With my iMac running at park performance with High Sierra, I’m curious to know what exchanging the 2 RAMs around?

Sep 30, 2018 1:04 PM in response to Robin Bonathan

Try this over another thread:


User uploaded file
Apple Support Communities
tgagle has posted in the macOS Mojave community.
Mojave install a disaster

I have seen the same problems with early betas up and to including the public new version.

It starts with incredibly slow keyboard. Each character typed on logon as about a 30 second lag.


Once logged on, no wifi.


I have tried all of the resets and safe mode boots.

Nothing has been it better.

I have restored to High Sierra backup every time.

Very disappointing!

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Sep 30, 2018 1:08 PM in response to Robin Bonathan

I'm still trying to figure out in the last few comments what got people so stirred up. I was saying for me to give the best answer it helps to know the person and have access to the setup for myself. I think the whole issue with Apple, and the OS not installing for those who want it to, has caused tension in itself. I haven't had an issue with anyone has said here, and I moderate people on a different platform, so I deal with plenty of raised tempers and frustration at times.

Sep 30, 2018 1:26 PM in response to iFrog41

I don’t think it’s helpful or facilitating in any way for someone to make the outlandish claim that “based upon what I’ve seen here [with a dozen or so posters on this thread] 99.9% of the people upgrading to Mohave don’t seem to have a problem. Obviously, THERE”S a problem Houston and it needs to get fixed which I’m sure it eventually will. But to minimize or diminish the significance of the situation is to slow walk a solution for those of us affected by it. To do otherwise will stir up the troops!

Sep 30, 2018 1:51 PM in response to armwood

armwood, did they by chance say which make and model of iMacs were having issues?


Out of this bunch I have a late 2015 27" that upgraded but dmauch has a 2017, and has issues. Just wondering if there is any kind of pattern surfacing yet ? In this thread I've seen more newer Macs, but also the 2012 that have had issues, beyond that on the other threads I've watched one being people being able to upgrade, but having issues with the App Store include different models. This and the other thread are the only two I watch here though.

Sep 30, 2018 2:00 PM in response to dmauch

Right, I wouldn't assume otherwise, but I'm thinking you did it through High Sierra each time, then tried the install from there. The App Store issues I mentioned were from users on Mojave, they couldn't connect at all, or other number of issues. But they were working OK on HS. I even checked with them to see if it was just Mojave, or iOS 12 as well, and one person got back to me and said it was just the Mac, and the iPhone had no issues with the App Store.

Sep 30, 2018 2:41 PM in response to lec0rsaire

As much as I like your explanation, I still believe there is something screwy here if the Migration or TM work flawlessly with HS ( many times now ). if the contents of the TM backup is at issue I firmly believe there would be a large gaggle ( don't want to use specific numbers or estimates or I will get nailed here ) that would be in the same boat. I have nothing but approved license software, nothing exotic on this machine. My Tm does not hav e any 32 bit software.

Sep 30, 2018 3:26 PM in response to lec0rsaire

...or 4 month old 27” iMacs. So let me ask this. If I have a TM backup on my WD Passport for Mac, but went ahead and erased my entire hard disk and then tried a clean install of Mohave, I might not encounter the problems? How then would I get all of my files and apps back onto the Mohave OS? May be a supid question with an easy answer ...but Ive grown weary at this point as well.

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Problems upgrading to macOS Mojave on MacBook Pro 2018

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