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Boot failure after High Sierra Update

Originally I updated my 2012 Mac Mini to High Sierra and quite frankly... it broke! I did a full recovery and an install of High Sierra from scratch and system has ran fine.


I have however since applied the 10.13.1 update from App Store onto it... and it's failing to boot.


Black screen with Apple logo at boot, won't go any further than the 100% thermometer.


Went into verbose mode, and the following is showing:


Synced /var/db

Warning: couldn't block sleep during cache update

Warning: proceeding w/o DiskArb

/dev/disk1 on / (hfs, local, journaled)

bash: /etc/rc.server: No such file or directory

tzinit: New update not compatible or older version: 2017c.1.0 vs 2017c.1.0: No such file or directory

Date/Time localhost com.apple.xpc.launchd[1] <Notice>: Early boot complete. Continuing system boot.

pci pause: SDXC

Waiting for DSMOS...


And there it hangs.


I really don't want to have to rebuild this Mini again!

Mac mini, macOS High Sierra (10.13.1)

Posted on Nov 7, 2017 11:40 AM

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Question marked as Top-ranking reply

Posted on Dec 2, 2017 10:32 AM

Hi everyone, I have exactly the same problem!


migrated successfully to High Sierra about two or three weeks ago. Only now happening. Disk and iMac are ok, the disk utility runs ok. But I am stuck with the progress bar “all white“ and nothing happens.

User uploaded file


Already tried to to reinstall from recovery the latest macOS version. No success, same behavior.


I have a question: if I restore from an old Time Machine backup, can I restore simply the operating system or will the process erase all newer files? I never tried this... is the process selective?


Thanks a lot in advance

Best regards

Claudio

64 replies

Mar 28, 2018 10:21 AM in response to John I. Clark

Hi

I tried all the methods suggested. The first time this happened with my Mac pro (mid 2012) I reinstalled OS and I was told my Mac isn't compatible and it got downgraded to sierra automatically. The second time nothing worked. Took it to icare (India), they deleted all my data and reinstalled El Capitan. So basically my Mac isn't compatible with high sierra. Be prepared to lose all your data if you have no backup. There is no other solution as far as I can tell apart from downgrading OS....

Apr 3, 2018 11:45 AM in response to John I. Clark

I´d really like to follow what you find out about the Macbook Pro 15 Retina Mid 2015.
Experiencing the same issue with boot failing, but after about 50 tries of restarts it starts up with an error message about some kernels being deactivated and a log to be sent to apple(i forgot to save this one). If its helpful i can try reboot and provide this log for you.


I´m clueless when it comes to troubleshooting a mac, but il post my hardware details if it might be helpful

Hardware Overview:



Model Name: MacBook Pro


Model Identifier: MacBookPro11,5


Processor Name: Intel Core i7


Processor Speed: 2,8 GHz


Number of Processors: 1


Total Number of Cores: 4


L2 Cache (per Core): 256 KB


L3 Cache: 6 MB


Memory: 16 GB


Boot ROM Version: MBP114.0177.B00


SMC Version (system): 2.30f2

Boot failure after High Sierra Update

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