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CSerpent Author

Level 1

22 points

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

Top-ranking reply

Claudio P.

Level 1

22 points

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.

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

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