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zero7404 Author

Level 3

813 points

fs tree invalid on APFS

hello,

while doing a first-aid check on my macOS APFS volume, I get the following message in the details as it scans the volume. it is

Checking the fsroot tree.

error: drec_val object (oid 0x51b169): invalid type (0)

fsroot tree is invalid.

The volume /dev/rdisk1s1 could not be verified completely.

can anyone who's knowledgeable with this type of error provide some info about what this error is, whether it's a concern or not ?

MacBook Pro (Retina, 15-inch, Late 2013), macOS Sierra (10.12.4), 2.0 GHz/16GB/256GB

Posted on Oct 1, 2017 3:41 PM

32 replies

zero7404 Author

Level 3

813 points

Oct 2, 2017 11:12 AM in response to leroydouglas

that did not fix anything.

Jan 25, 2018 3:02 PM in response to seanbperiod

I fixed mine by going into recovery mode and restoring the system from a Time Machine system snapshot.

No need to reformat.

Took less than 5 minutes.

Oct 2, 2017 10:23 AM in response to zero7404

Boot into Recovery and run DiskFirst Aid from there.

Recovery http://support.apple.com/kb/HT4718

Feb 25, 2018 5:10 PM in response to zero7404

Hello,

Had same issue and fixed by deleting dataless TimeMachine local snapshots. See: error: snap_metadata_val object (): invalid extentref_tree_oid (0x0)

zero7404 Author

Level 3

813 points

Oct 8, 2017 6:04 AM in response to zero7404

i'm wondering what this error actually means, whether it indicates there is something wrong with the file system or the ssd .... ?

virgosun

Level 1

4 points

Oct 10, 2017 12:22 AM in response to zero7404

same here, unable to boot

Bonsterg

Level 1

10 points

Nov 23, 2017 1:34 PM in response to bonimac

Running into this problem as well. Has anyone found a fix other than reformatting the disk as per swissmacuser?

preak

Level 1

4 points

Dec 4, 2017 7:26 AM in response to Drewbster

same issue here since root fix. Also I can no longer explore other machines on our network. Very frustrating.

tbirdvet

Level 6

14,411 points

Dec 4, 2017 1:25 PM in response to bonimac

Running first aid on top level drive will only take about 2s, very fast even with or without error message. Mine takes about 2s with no errors reported.

Dec 13, 2017 10:53 AM in response to towoode

towoode wrote:

so what is bug 33949235 and what is its status?

You can poke around yourself: Open Radar

however the search function is most unrewarding.

zero7404 Author

Level 3

813 points

Dec 13, 2017 11:43 AM in response to leroydouglas

anyone know why this issue exists in the first place, what’s causing it ?

Bonsterg

Level 1

10 points

Dec 14, 2017 11:22 AM in response to Drewbster

Worked for me as well. It looks like its fixed.

zero7404 Author

Level 3

813 points

Dec 14, 2017 12:02 PM in response to Bonsterg

not for me, i am on 10.13.2 as well .....

Screen Shot 2017-12-14 at 14.58.40.jpg - Google Drive

Jan 24, 2018 7:31 AM in response to zero7404

Just upgraded to 10.13.3 and I have the issue now. Deleted over 50GB and disk is reporting less than 4GB free. Non-Apple SSD. So frustrating.

zero7404 Author

Level 3

813 points

Jan 25, 2018 3:08 PM in response to jannymark

that's interesting. from what instance in time was your backup ? in particular, was it a backup from the same High Sierra version of macOS ?

fs tree invalid on APFS