Stuck AFTER successful High Sierra install

I'm a very experienced Mac tech support consultant, yet I've been grappling with the "too many corpses" problem since yesterday. I tried a number of approaches, but was confident that a simple solution existed. YOU MAY NOT HAVE TO ERASE YOUR HARD DRIVE, or reinstall Mac OS. I found a couple of postings that explain this surprisingly quick solution. If you're able to get into Recovery Mode utilizing CMD-R, and you're not afraid to work in the Terminal program, THIS WORKS! If you follow these steps EXACTLY, a bad file named "mbr_cache" will be rebuilt and your Mac will reboot successfully (slowly the first time as the rebuild happens, then normal speed after that). This solution worked on my 2011-vintage 21-inch iMac (iMac 12,1) with Mac OS High Sierra. Someone should tell the Apple Geniuses and Tech Support Specialists about this. Or, better yet, they should be able to find these types of solutions themselves. Good luck!

The two articles where I found this solution are:

macos - Opendirectoryd too many corpses being created - Ask Different

https://mrsystems.co.uk/blogs/news/too-many-corpses-being-created

Steps from the articles:

1. Boot and hold CMD-R to start up from macOS Recovery
2. If Filevault is on, mount the disk with Disk Utility and enter password
3. Enter these two commands in Terminal

4. cd /Volumes/Macintosh\ HD/var/db/caches/opendirectory

5. mv ./mbr_cache ./mbr_cache-old

6. Exit from Terminal
7. Restart the computer

I have also had this problem too but for not that long as you did. I tried the same thing including recovery but I took my MacBook to my campus apple store and they told me that it has to do with the new OS and the Mac not being able to keep up with it, as in the RAM it has already isn't enough for it to run at all, although I was able to use Windows on Bootcamp. They said I needed to replace the ram in it with at least 8gb but at most 16gb. So I went to Best Buy and got one BUT it needed to be SoDimm (shorter memory card, 204 pins) for $90. Amazon isn't very much cheaper and it'll save you time. The cost to repair was $25.

I should tell you that if you do get a 16gb ram memory card, it needs to be 2 8gb RAM cards that are SoDimm, and they will replace the old memory cards with the new ones. If you get the 8gb RAM card, tell the repair technicians to keep one of the 2gb RAM cards in there (there are two 2gb ram cards total in your MacBook Pro that make it 4gb, I assume) so that you have a total of 10gb of RAM.

I paid $50 for the repair at my campus apple store from hourly and diagnostic. You can pay that much plus the cost of the RAM, at least $140. Or you can do it the free way: downgrade your OS to Sierra.

I followed all kind of steps to boot my Macbook Pro (15") as mentioned on this link: https://www.macworld.co.uk/how-to/mac/mac-wont-turn-on-3423817/#comments

But nothing worked so finally i went into Recovery mode (Disk utilities) and did a Reinstall MacOS (I am on Sierra). It took many hours (3-4) and it worked to the extent that it booted my Mac into the OS upto the login screen. But here it got stuck as it didn't recognise any username/password. After breaking my head for many hours I finally contacted Apple support on chat. They suggested following steps which worked flawlessly:

1) boot into Single User mode
2) mount -uw /
3) rm /var/db/.AppleSetupDone
4) reboot
It should boot your Mac into Setup assistant. There follow below steps:

5) create new Administrator account
6) Skip iCloud Keychain, FileVault
Proceed and you should be logged in as the new user

At this point still I couldn't see my original username in System Preferences > Users & Groups. For that Apple Support provided this link to follow:

https://support.apple.com/kb/PH25515?locale=en_US

Basically create a new user account having the original username. Use Existing Folder when prompted.

Now I am able to login as the original username as well with all the original data (of course all the original data was preserved when i did the Reinstall OS option. I took a backup before Reinstalling).

2011 MacBook Pro here. Mine started doing this out of the blue just yesterday. After a fresh reinstall of High Sierra, like you, I turn it on today and it hangs again. How I got it working just now though is resetting the PRAM. As you press the power on button, hold Alt (Options), Command, P and R until it starts up for the second time. This only rests some small settings in the Sytem Preferences, so don’t worry about it doing anything massive. You may just have to change some settings back.

Now, whether my MacBook Pro hangs on the progress bar tomorrow when I start it up, I don’t know. I’m working through the troubleshooting list and the PRAM was the second thing to try after a fresh reinstall. After that, if the PRAM thing doesn’t work, I think I’m just gonna put it in sleep mode from there on out.

I had an issue with my Macbook pro late 2011. Sometimes it was stuck on boot page for hours and it wouldn't come up. But after several restart i could finally got it working! it was killing me! sometimes everything was ok but sometimes very slow boot!

I did everything from clearing the memory to deleting some boot files! nothing worked!

Then i decided to delete all my files and install a fresh version of High Sierra! before I had Yousemit!

after installing the OS! again the problem showed! this time even worse! my cpu usage was very high some times and the laptop was heating! i was going crazy!! I knew it had to do something with hardwares! The first guess was hard drive! the second guess was RAM! I changed them.... still the problem was there!!!

Finally I found the problem!!! very simple: " The BATTERY " !!!

it appears that my battery was not functioning normal and whenever I had my Laptop pluged in to power, my cpu usage was going high, so everything else was not functioning normal!!

I removed my battery and now working only with power cable! My laptop is working just fine! now looking for new battery! Problem SOLVED! hope it helps you

Thanks for this. After installing High Sierra I had the same issue. My 2010 MacBook would not load. After trying everything ( recovery mode, first aid, safe mode) My computer would not boot up. All I get is the white screen with the black Apple logo. The progress bar goes 3/4 of the way then craws. When it finishes it does ever move to the login screen. I even left there overnight still no success. I had to choose time machine from recovery mode, plug. in my externail hard drive that i saved my backups. Once I restored From the backup like you I’m back to Sierra where plan to stay. Clearly High Sierra is for the new MacBooks and iMacs. Interesting enough after reinstall Sierra is actually snapier.

Saw this happen once shortly after upgrading my work iMac. I restarted in Safe Mode (restart holding shift key until the Apple icon appears) and everything seemed fine, then restarted normally and it has been fine since. I couldn't find anything in the console to indicate what the hang was but based on what I saw it must have been the Finder or whatever else launches just before the Finder. Don't know if Safe Mode, which deletes and trims cache files, had a positive effect or no effect.

the hint that it is starting in Safe Mode is that it takes for ever to boot. That’s because disk check is running and then cache files are being deleted. There used to be more of an indication but I didn’t see anything in High Sierra. Just the usual incredibly slow boot.

I had a similar issue when I upgraded my 2010 MacBook Pro. The install went fine, then it got hung up while booting up. The progress bar got to, around, the 90% mark, then, stopped. I let it sit for over an hour and there was no movement. I, then, did a hard shut down, booted into the Recovery Drive, and verified that High Sierra was installed. I ran First Aid in Disk Utility and found no problems. I restarted and boot-up into the new OS was successful. I haven't had any problems with subsequent reboots. No other issues, either. I couldn't determine what it was getting stuck on during the initial boot.

I have a iMac mid 2010 and updates (while to frequent of late imo ) When I updated to Sierra

(Not High Sierra ) it took THREE days to get my iMac working , I did back up , What I did was google the issue

and used safe mode and left it run overnight (? why ) but in the a.m. it worked after (another ) restart )

It appears by this forum High Sierra may be sticky-fuzzy or > I did not do the latest iTunes updates (Due to all the problems reported (and Sierra update for iTunes -multiple , the last one deleted all but two of my visualizers oh well

I use my iMac for music -listening and Garageband and MainStage 3 , I avoid email too , I run Avast which has a low CPU load (turn off when backing up ) Music making also disconnect (ethernet )

Best of Luck

diamondblues

aka David

ℹ😟😠😕

I had a MacBook Pro mid 2012, and had the same problem(High Sierra 10.13.1). The install is fine, days later I shut down my computer and when I start it, it stuck after I entered my password.

I waited for about an hour and just press the power button to shut it down. This time the computer starts without any problem. I don’t know if it will happen again.

Hope this helps.

Two days after installation of HSierra 2010 MacBook Pro would not boot up. Tried booting from power on at least 6 times no success. Thanks to Time Machine I restored completely to old Sierra and everything is working again. Will wait for a month or two before upgrading again.

Having same issue. It seems to hold up when the apple logo appears and the progress bar starts loading. It seems to load normally at first until it gets about 1/3 to 1/2 way across, then it slows down considerably until the bar is fully black. Then it just sits there. I am attempting to restore from last known successful Time Machine backup. On the previous operating system.

A couple of things to note (not sure if anyone else had similar anomalies). First, my MacBook ( Pro, 2012.5) was running HighSierra Beta, and the version it was upgrading to was 10.13.1, which I believe is a retail release. Second, I lost internet service (service provider outage) just prior to the issue appearing.

After I regained service, my service provider had me reset (power cycle) both my Airport Time Capsule and the modem they provided me. Before I powered off my Airport, I powered down my MacBook (so it wouldn't interrupt a Time Machine backup). The last time I powered it down was more than a couple of weeks ago, and I believe it was the first power down since High Sierra downloaded to my MacBook. I think the issue is when it tried to install 10.13.1 on the restart.

If I get it to restore from the

Can you get to the point where you have 4 choices to makes: disc recovery, safari etc?

There I guess and I am not sure in files you can go to save image as from then TO on an external drive if you have one.

This has happened too. Apple over the phone and at their store didn't help and were offensive.

Cheers,

F