You can make a difference in the Apple Support Community!

When you sign up with your Apple Account, you can provide valuable feedback to other community members by upvoting helpful replies and User Tips.

Looks like no one’s replied in a while. To start the conversation again, simply ask a new question.

Corrupted Drive

Is there any way to fix this problem without making a new drive? Here is the report:


Verifying the startup volume will cause this computer to stop responding.


Verifying file system.

Volume could not be unmounted.

Using live mode.

Performing fsck_apfs -n -l -x /dev/rdisk2s5

Checking the container superblock.

Checking the fusion superblock.

Checking the EFI jumpstart record.

Checking the space manager.

Checking the space manager free queue trees.

Checking the object map.

Checking the Fusion data structures.

error: fusion middle tree: invalid "from" range 0x4000009da6de3:2

Fusion data structures are invalid.

The volume /dev/rdisk2s5 could not be verified completely.

File system check exit code is 8.

Restoring the original state found as mounted.

File system verify or repair failed. : (-69845)


Operation successful.


I tried running first aid in recovery and it came up with the same error.


iMac Line (2012 and Later)

Posted on Apr 19, 2020 9:43 AM

Reply
Question marked as Top-ranking reply

Posted on Apr 19, 2020 12:28 PM

Boot into the Recovery volume (boot with the Command + R keys held down), select Disk Utility and repair the disk. You will be able to unmount the disk this way to run First Aid on it.



Similar questions

9 replies

Apr 19, 2020 11:09 AM in response to Hlidskjalf

Sorry to hear you are having a problem, whatever it is. You haven't stated what your issue is that caused you to run Disk Utility. I suggest the following. State what is happening. Did anything occur to cause it? Was anything changed or installed? Run Disk utility several times to see if it fixes the problem. Often more runs are needed. Download and install the free app EtraheckPro and run it. It will have a lot of useful information. You can post it here for someone to review and then advise you how to proceed.

Apr 19, 2020 3:01 PM in response to Hlidskjalf

Do you have a complete backup of your HD made prior to this occurring? If so you may have to erase the drive, reinstall the system and then use Migration Assistant to copy your user files to the newly formatted drive.


Before that I would get an external HD, preferable SSD, and clone the boot drive to it with Carbon Copy Cloner. Then try to boot into it. If it's bootable it's the internal drive itself that's bonkers. It it's not bootable the system and files are corrupted and an erase and reinstall of the system appears to be a good route to go.



Corrupted Drive

Welcome to Apple Support Community
A forum where Apple customers help each other with their products. Get started with your Apple Account.