Stuck AFTER successful High Sierra install

I was able to get to the recovery screen (Command R after power toggle), but when I tried to retry, it kept sticking at the same point. I performed a wipe and restored from backup (one prior to the update) and was able to get back to before the update. The next day my computer auto updated normally without any issues and has been fine since.

My guess is when the update downloaded into my computer, there was possibly an interruption in the data stream (my internet provider went offline for a couple of hours right around when the download pushed through) and some script could have been missed or corrupt.

One thing to note if this is the fix you want to try. It is a time consuming process. I used a direct connection between my Time Machine and my MacBook with a lan cable and it took around 8-9 hours (450gb onto a 480gb ssd). If you have a lightning connection to your back up source, it would probably be quicker, but if you attempt over WiFi, it could take over 24 hours.

I couldn’t get it to actually do anything and make it finish so I just completely burned it to the ground and got rid of everything and then installed the default install from the auto web helper thing. I think it was like 3 or 4 os ago and then back up to Sierra. Luckily I had done like a full back up before all of this, but it’s still inexcusable for this to be happening and wasting this much time and resources.

I’m having the same problem right now with my 2011 MacBook Pro. I went to restart this morning because of ungodly slowness, and 8 hours later it’s still in the reboot process, with just the Apple logo and fully black bar. I did a power-button reboot when it was stuck an hour after the first reboot, and it’s been frozen 8 hours after starting the second reboot.

Had this same problem after doing my usual update procedure once High Sierra had hit .2. I wipe the drive, do a clean install, then do a migrate from a Time Machine backup to bring my stuff back. Hasn't failed...until now.

Even booting Safe Mode didn't work (would still hang). Finally ended up reinstalling High Sierra again over this newly-upgraded installation, which did the trick.

Hello

I will like to disable the iCloud as I think the sync slows the computer.

I will use Google Doc instead.

Also what is that App which checks why your computer is either slow or has the beach ball rolling?

Thanks a lot,

Emmanuel

Hello

I am unsure. However at my end, I have now a speed problem on my computer.

How do I stop iCloud?

This computer does not bring me anything at all, nothing.

And yet the hard drive is not fully used and also it is not cluttered with Apps there.

Cheers,

F

I’m in the same situation now, I upgraded a week ago, and have successfully restarted a few times. I rebooted my iMac 30 minutes ago, and it appears to be stuck at the last point on the startup.

Got the same problem and shift safe mode does not work. I installed 3 times the OS and still now loading bar and apple and not getting passed this. Has your situation changed?

When the computer starts in safe mode, does it indicate this on the startup screen... mine seems to be going through the standard startup process?

Backup, I will contact Apple Support again and have them walk me through the update.

I will post again if and when everything is fixed.

i can't get mine to restart in safe mode. i get the dead corpses message that repeats in verbose mode.

What have you done now as I’m in same situation.

I save image as of HD then formatted HD and re-instal. Someone did the reinstall for me.

Is there a way to switch back to a prior OS before the High Sierra update?

Go to preferences, iCloud and turn off.