[SOLVED] Internal hdd problem

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Oct 1, 2018
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iMac 27” late 2012 high Sierra
Failed to start with internal HDD

Booted with OS on USB external disk
Ran disk utility first aid to check internal HDD
Results below:

volume “Macintosh HD”
Repairing file system.
Volume is already unmounted.
Performing fsck_hfs -fy -x /dev/rdisk0s2
Checking Journaled HFS Plus volume.
Checking extents overflow file.
Checking catalog file.
The volume Macintosh HD could not be verified completely.
File system check exit code is 8.
Restoring the original state found as unmounted.
File system verify or repair failed.

volume “Govind's”
Repairing file system.
Volume was successfully unmounted.
Performing fsck_hfs -fy -x /dev/rdisk0s4
Checking Journaled HFS Plus volume.
Checking extents overflow file.
Checking catalog file.
Invalid index key
Missing thread record (id = 519201)
Incorrect block count for file 2018.09.18.G80.asl
(It should be 85 instead of 79)
The volume Govind's could not be verified completely.
File system check exit code is 8.
Restoring the original state found as mounted.
Problem -69842 occurred while restoring the original mount state.
File system verify or repair failed.
Operation failed…
 
That usually indicates a corrupt filesystem.
I have encountered that several times and in one instance it happened because the disk was failing.
I followed the steps on this link and was able to fix the issue.
In a couple of disk I had to run it 5-7 times to before the disks were repaired.

I found that this could happen when the system loses power, system goes to sleep with low battery, or after a major update.

 

verndewd

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Mar 27, 2009
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boot in repair mode if you have time machine back ups, if not youll need to repair from a mojave online install, your mac will avoid bad sectors but if the drive is bad you will need to replace it
 
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