macOS Mojave unusual boot beahvior

Yes, this is normal. I’ve used Mojave (including betas) for quite a while. I understand this might look worrisome at first, but I haven’t noticed any problems, so it’s only a UI change—nothing is broken under the hood.

Normal it looks now until eventually the screen completely goes blank. It is an old bug reintroduced in Mojave upgrade.

I got it resolved by Apple phone support, but don't remember what was done to correct it.

Good luck to all who have this problem including me!!

Have same issue @ cold boot on 10.14.0. Recall having similar issues in HS 10.13.0 thru to 10.13.3 Supplement and only fixed on 10.13.4. This was happening on Late 2012 21.5 inch iMac ( platter drive ) and on early Retina MacBook (512SSD).

Mojave 10.14.0 on the whole is good. Give Apple a few more point updates and hope it is fixed.

Hello amunif

Not it is not normal that boot process ,loading halfway, and turning black, for a few second,and vent on again?

It began, after,MacOS Mojave came out, and I have try several things to get it right again, but now luck yet?

In High Sierra,Sierra,El Capitan,and,Yosemite,was there ,no problem with the Boot process?

I have that boot problem,with my iMac & MacBooks,in OSX Mavericks,that year?

Maybe,it will be okay, when Apple send a new update,to MacOS Mojave?

We can just hope, it will solve our problems?

Regards Claus.

Hello YakovM

No it is not a normal Boot Process?

It Began after Mojave came! you now that?

I wonder, why you are on Level 3,with that attitude?

There hat never been a boot issue,before?

Okay i have some, boot issue, on OSX Mavericks,but it was gone after the next update from Apple,that year?

Hoping that Apple can solve our problems, with boot up, in MacOS Mojave?

Regards Claus.

It has been close to a week since Apple Support gave me a case . I've not heard from Apple as of today.

The support person I talked to, promised to send me an email once Apple has a resolution. Only thing we can do

is to hang in until most likely Apple posts a patch. The unusual booting we have now is not a problem (yet). You might have realized from others including me that this is an old bug reintroduced in Mojave.

Hope Apple posts a patch before we start experiencing black screen after booting.

Stay tuned and be patience.

It seems like Apple is sleeping on it and the community members need to speak up more forcibly for a solution quicker before this temporary screen blackout becomes full-time and no access to the device.

Sir, you just open up the issue with Apple support and complain you

don't like the boot up progress bar issue and not sure if it will eventually

lead to total blank screen not like the half-*** screen you experience now.

I called the phone support and techies made me jump through some hoops

by doing this and that and even reinstalling the full Mojave. Then the techie

issued a ticket and said it was escalated to "Engineering". When I followed up

after a couple of weeks, I was told the "Engineering" thinks it is only a cosmetic issue

there is no resolution date.

I suppose more people call and holler, or when it leads to a total blank desktop screen,

the "Engineering" may do something or you may have to take your Computer

to the Genius Bar.

Good luck.

Same problem here. It would be great to find the fix to fix it 🙂

Well, I've a case opened with Mac Support and was escalated to the Engineering.

For me this is a reoccurrence, which was corrected back in January, 2017.

Stay tuned.

Please let us know the fix if you found one or if Apple has helped you find the fix 🙂

I'll post any resolution I get from Apple Support.

I also have a problem with an irregular boot up such as yours. I’ve contacted Apple support a couple of times, and they said that they are aware of the problem.

I have exactly the same issue once I updated the OS to Mojave from yesterday. Can you please share apple support email id where I can report the issue?