Disk Utility, First Aid, exit code 8

Question

Disk Utility, First Aid, exit code 8

2014 15" Macbook Pro. Running MAC OS Sierra 10.12.6

Ran First Aid from Disk Utility and received message about disk requiring repair, ending with exit code 8 and message to rerun First Aid in Recovery mode.

Ran First Aid in Recovery and receive exit code 0 (all good)

Reran First Aid in normal mode and still receiving message the original message and exit code 8.

So what do I do next?

MacBook Pro with Retina display, OS X Yosemite (10.10.2), 2014, 500 GB SSD, 16 GB RAM

Posted on Nov 4, 2018 8:11 AM

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Answer 1

Eau Rouge

Level 8

42,656 points

Nov 5, 2018 2:47 PM in response to sheridancarole

Try re installing this, Download macOS Sierra 10.12.6 Combo Update

once downloaded double-click to install

it will reset some system files and caches and may help.

But make a full backup before you do this

Once it is installed reboot and rerun Disk Utility.

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Answer 2

Lexiepex

Level 6

14,108 points

Nov 6, 2018 1:50 AM in response to sheridancarole

I posted an answer, but internet here was "disturbed". Next try:

after your FirstAid tests, I second the Combo Update proposal by Eau Rouge.

when that does not solve it, I propose to restart in the recovery partition and "reset permissions".

when that does not solve it, in the recovery partition "reinstall macOS" this will leave your user data alone (but of course you have backups).

Lex

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Answer 3

Eric Root

Level 10

685,221 points

Nov 7, 2018 11:42 AM in response to sheridancarole

Use the Time Machine backups. If you update the clone, it is liable to restore the same problems.

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Answer 4

Nov 7, 2018 11:14 AM in response to sheridancarole

The problems I am experiencing are sporadic - some days no problems at all, other days: frequent beachballs, need to force reboot, very slow performance, fan running when not too much going on.

I was following a troubleshooting post and trying things sequentially:

reset SMC,

reset PRAM,

run first aid from disk utility,

run first aid from recovery mode.

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Answer 5

Nov 7, 2018 11:17 AM in response to Eau Rouge

What is the best way to backup before I try to reinstall Sierra ?

I have a Time Machine backups - should I just use those?

I also have a clone from a few months ago. If I update the clone before I reinstall Sierra - it just RECREATE the same problems if I then restore from the clone?

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Answer 6

Eric Root

Level 10

685,221 points

Nov 5, 2018 7:57 PM in response to sheridancarole

The exit code from the Recovery Partition is probably more accurate since when you receive the error code, you are running Disk Utility from the drive you are booted from.

It would help if you would post what problems you are having that caused you to run Disk Utility. Hard to suggest what to do to fix a problem without more information.

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Disk Utility, First Aid, exit code 8

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