Level 1

61 points

Disk won't boot from internal ssd (extended), when running first aid error -69842 occured. I need to save my files (I don't have any back up)

Disk won't boot from internal ssd (extended), when running first aid error -69842 occured.

I installed High Sierra (I had that one on my internal disk), booted from external ssd (extended (journaled) it didn't gave me an option to format it same as internal disk) and run firs aid on my internal drive. This is what is shown. I don't exactly understand what that means.

Verifying storage system

Performing fsck_cs -n -x --lv --uuid 6F7B3A1F-E4F3-432E-B77C-BBCA1A9DEBE4

Checking volume

disk0s2: Scan for Volume Headers

disk0s2: Scan for Disk Labels

Logical Volume Group 6F7B3A1F-E4F3-432E-B77C-BBCA1A9DEBE4 on 1 device

disk0s2: Scan for Metadata Volume

Logical Volume Group has a 24 MB Metadata Volume with double redundancy

Start scanning metadata for a valid checkpoint

Load and verify Segment Headers

Load and verify Checkpoint Payload

Load and verify Transaction Segment

Incorporate 0 newer non-checkpoint transactions

Load and verify Virtual Address Table

Load and verify Segment Usage Table

Load and verify Metadata Superblock

Load and verify Logical Volumes B-Trees

Logical Volume Group contains 1 Logical Volume

Load and verify 79536A78-38AA-4DD0-982D-BD11763FF978

Load and verify DD403FA6-E5E3-4A9C-B3AB-879CF98027AA

Load and verify Freespace Summary

Load and verify Block Accounting

Load and verify Live Virtual Addresses

Newest transaction commit checkpoint is valid

Load and verify Segment Cleaning

The volume 6F7B3A1F-E4F3-432E-B77C-BBCA1A9DEBE4 appears to be OK

Storage system check exit code is 0.

Repairing file system.

Volume was successfully unmounted.

Performing fsck_hfs -fy -x /dev/rdisk1

Checking Journaled HFS Plus volume.

The volume 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…

What should I do in order to save and back up my files?

It is MacBook Pro retina late 2013

MacBook Pro Retina

Posted on Jun 4, 2020 11:03 PM

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HWTech

Level 9

69,488 points

Posted on Jun 8, 2020 11:03 AM

Since you are using an HFS+ file system (aka MacOS Extended (Journaled)) you may want to try the paid app Disk Warrior to see if the file system can be repaired. However, there are no guarantees this will work as it depends on the reason for the file system issues in the first place. Since this laptop uses an SSD it makes it less likely to fix the drive due to how SSDs work, but you may get lucky here.

You can try contacting a professional data recovery service such as Drive Savers or Ontrack. Both vendors provide free estimates and bot are recommended by Apple. I can personally vouch for Drive Savers as our organization used them several times many years ago. I don't know what their policy is today, but back then you only paid if they could recover data. I highly recommend you contact them to see what they have to say.

I hope you will start to have regular & frequent system backups in the future (including backing up unique data on any external drives). It is impossible to recover accidentally deleted data from an SSD. Plus an SSD can fail at any time without any warning signs.

Good luck.

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28 replies

aaa162 Author

Level 1

61 points

Jun 7, 2020 10:30 PM in response to BDAqua

Now I checked... When I go to my internal First that pops up are Aplications, Library, Users and System, I cans see all those files, but when I try to go into them. They are empty

BDAqua

Level 10

250,259 points

Jun 8, 2020 7:53 AM in response to aaa162

Which Mac is this anyway?

0 Bytes is a bad sign.

aaa162 Author

Level 1

61 points

Jun 8, 2020 9:27 AM in response to BDAqua

It is MacBook Pro Retina Late 2013

BDAqua

Level 10

250,259 points

Jun 8, 2020 10:10 AM in response to aaa162

Very sad to say, but I see no way to recover any data. :(

aaa162 Author

Level 1

61 points

Jul 16, 2020 4:47 AM in response to BDAqua

Hey,

Still having problem with my mac, now i found that maybe i should reset NVRAM or SMC. What do you think about that?

aaa162 Author

Level 1

61 points

Jul 16, 2020 7:29 AM in response to aaa162

I’m running High Sierra. WAS running. I’m booting it from external, but I cannot see my internal drive anymore.

aaa162 Author

Level 1

61 points

Jul 23, 2020 8:03 AM in response to aaa162

I'm from relatively small country so maybe there are ppl that know how to fix this sort of stuff. That is why I'm asking. :)

aaa162 Author

Level 1

61 points

Jul 23, 2020 4:16 PM in response to BDAqua

Yes I can boot and it is 10.13.6 on external, cause that is what I had previously, so I thought that is the one I need to go with, so I can read files on internal storage

aaa162 Author

Level 1

61 points

Jul 16, 2020 7:27 AM in response to HWTech

Hey,

No I didn’t. When I went to their site this is what I found

Note: The “Startup Disk” of macOS Catalina (10.15), macOS Mojave (10.14), and macOS 10.13 High Sierra with SSDs (Solid State Drives) cannot be rebuilt with DiskWarrior as they are automatically pre-loaded with Apple File System (APFS).

HWTech

Level 9

69,488 points

Jul 23, 2020 10:43 AM in response to aaa162

We can try checking the health of the SSD using DriveDx as suggested previously if you have an external macOS boot drive.

If you don't have an external macOS boot drive, then I can provide instructions for you to create a bootable Knoppix Linux USB drive if you have access to another computer (Mac, Windows, or Linux). Depending on the problem with the SSD, it may be possible to perform to reset the SSD to factory defaults by using the SSD's built-in hardware secure erase feature (assuming this SSD has this feature since not all Apple SSDs support this feature). I've successfully gotten several SSDs back into working condition by performing this hardware reset. To perform this reset requires a Linux boot disk & utility to access the hardware feature of the SSD. I can provide instructions for both if you want. Seems you really have nothing to lose at this point.

What is the exact model of your Mac? You can get this information by entering your serial number here:

https://checkcoverage.apple.com/

aaa162 Author

Level 1

61 points

Jul 23, 2020 1:33 PM in response to BDAqua

Hey,

I'm booting from Samsung T7 touch now, but problem is that my SSD won't show in disc utility, or anywhere (most times it won't show). A week ago it managed to show when I powered up and pressed option key then I could see Macintosh HD (than I turned off my computer) . But by the time I inserted external ssd and booted up (1-3min), the disk couldn't be seen again. And that is how it always is.

One of the guys I went to told me that that can happen when you insert HDD (formatted for windows) into Mac that has question mark. Don't know how that could be relevant?

aaa162 Author

Level 1

61 points

Jul 23, 2020 1:44 PM in response to HWTech

Problem is that I want to save files form that disk. My Mac is MBP Late 2013 Retina A1052 ssd model is MZ-JPU512T/0A6

Buying a new one isn't a problem, I already ordered new disk.

If there is a Linux way of accessing files and copying them to external ssd that would be great.

But as I mentioned I can't see disk in disk utility or get it to show anywhere. Once in 10-15 times it shows itself buy only when powering up and holding option key. By the time I boot up from external it is gone.

HWTech

Level 9

69,488 points

Jul 23, 2020 5:09 PM in response to aaa162

I've had multiple SSDs from the 2013 Macs fail so it is very possible the SSD is unusable (IIRC Apple had some known SSD issues around that time). Within Disk Utility click on "View" and select "Show All Devices" to see if the physical SSD appears in the left pane of Disk Utility. Recent versions of Disk Utility hide the physical drive by default.

If you cannot see the physical drive with Disk Utility or DriveDx, then the only way you can attempt to retrieve data is by contacting a professional data recovery service such as Drive Savers or Ontrack.

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Disk won't boot from internal ssd (extended), when running first aid error -69842 occured. I need to save my files (I don't have any back up)