High Sierra install is frozen

I had the same frozen problem (17 hours) as the original question. Read your replies. Did a boot into safe mode: and got a gray screen of hash lines; did another safe boot and got a dim grey screen with lesser hash lines with 3 horizontally spaced login pictures and password blocks. Did one more safe boot and got a nice login screen - except for an errant upper right corner 3 inch long hashed up line. Apparently working, except every search bar press in Chrome blinks the screen. Graphics card/screen showed no prior problems. MBP 13in early 2011 OS X 10.11.6 (Comparisons to Windows ... deleted)

I had same problem I enabled journaled disc and hey it worked (in disc utility)

My problem on my 2012 MacBook Pro is even worse. Since updating from 10.12.6 the system is using almost 100% of the processor time, meaning that my user applications are at snails pace. Kernel_task is using 533% of CPU (not sure how this is mathematically possible - but hey ho this is an Apple machine, and they are never wrong).

People say ‘oh that is a faulty temperature sensor and you need a new motherboard’ (for £500? - yeah right).

However, I have a bootable copy of 10.12.6 on my external HDD and if I start up from that everything works fine. System processor usage between 5 and 10% until I start software.

So, why is my motherboard/sensor faulty on 10.13.0 but not on 10.12.6?

I could live with booting from the external drive permanently if it wasn’t for the bind of having to transfer bookmarks, iTunes libraries, etc., but why should I have to?

Well, Duh!!

Do you really think we would go to the trouble of asking a question here, if we had not tried all the blatantly obvious solutions?

My theory is that when anything goes wrong with an update Apple have pre-programmed a throttling process into the startup in order to get the user to take the computer to an Apple Store to pay vast amounts of money for a "repair" which is basically not necessary.

I say this because I have SSD Fan Control installed on the 10.12.6 boot copy, and when I start from this, the fans go to 6300 rpm almost immediately after the horizontal startup progress bar appears on the screen. All they have done is set a sensor to register 128C and Bingo!! pretend the motherboard needs replacing; but 2/3rds of the way across, the progress bar SSD Fan Control kicks in and the fans reduce to 2000rpm which is the value I have set them to.

Unfortunately, when you install 10.13.0 it automatically renders much Apple software to be incompatible with 10.12.6.

I'm afraid this is corporate arrogance beyond belief. Imagine buying a car, and if you drove above the speed limit for a few minutes or disconnected the car battery, the engine was throttled back to a maximum of 25mph until you took it to a garage for an expensive repair.

Dude. Not everything is about you.

I was answering the question of the person above to make sure when they say nothing happened that they had really powered down.

You seem to have problems that extend beyond your boot process....

Not everything is about me, says the person who is so self obsessed that he takes just 5 minutes to respond to a critical reply.

Do you not understand irony?

I will take "you seem to have problems that extend beyond your boot process" as an admittance that you do not have a clue what my problem is - but you feel you just have to reply anyway.

You still don't get it - I was responding to Dillonpanya who was responding to ATHiker95 who was responding to...

None of it has anything to do with you. You made it about you. Go start your own thread.

Thank you SO MUCH for this post! After 3 stalled installations leaving my audio output disabled & other software portions only partially installed, installing from Recovery mode finally installed correctly.

Never mind Benny. It started moving finally. I guess I was too impatient. For 10 to 15 minutes after I logged in, the progress bar didn't make a move. I thought it was still frozen. Then I noticed a message "....14 minutes remaining...." and counting down. It eventually did complete the installation. But then, I think it should display some kind of message right after I restarted and logged in, just to show us that it is working again. I almost restarted again after waiting 10 minutes and saw no response. Anyway, it is working now. Thank you very much.

I have tried 3 times now but I think as a Beta tester the problem as been one of the Beta updates or so I read online. Tried again last night left it for 14 hours then I unplugged and left it for a minute replugged then left it to see if would resume. NOTHING a total time of 17 hours wasted it starts to load then just freezes before the end I have managed to get my restore to work and will give up trying to update, this is rubbish apple

"Unfortunately, when you install 10.13.0 it automatically renders much Apple software to be incompatible with 10.12.6"

You seems to be right as a Beta tester I am running 10.12.6 and after three attempts the new software just freezes even after being left for hours, last attempt 17 hours !

So I now take it current Beta testers with 10.12.6 cannot upgrade to the new software, well thank you apple for that no more updates RUBBISH

My iMac 27" seems to be still running, but the screen is blank. Every once in a while I can hear the hard drive function. But, nothing else. I get no mouse pointer and my keyboard makes no difference. Does it wreck everything if I just shut down using the power button and then start up again?