Seems like my APFS on my 512G SanDisk USB has gone corrupt.
diskutil list
/dev/disk0 (internal):
#: TYPE NAME SIZE IDENTIFIER
0: GUID_partition_scheme 500.3 GB disk0
1: EFI EFI 314.6 MB disk0s1
2: Apple_APFS Container disk1 500.0 GB disk0s2
/dev/disk1 (synthesized):
#: TYPE NAME SIZE IDENTIFIER
0: APFS Container Scheme - +500.0 GB disk1
Physical Store disk0s2
1: APFS Volume APPLE SSD AP0512M Media 273.7 GB disk1s1
2: APFS Volume PreBoot 18.4 MB disk1s2
3: APFS Volume Recovery 521.4 MB disk1s3
4: APFS Volume VM 8.6 GB disk1s4
5: APFS Volume Programming 74.0 GB disk1s5
6: APFS Volume P2 117.8 GB disk1s6
/dev/disk2 (external, physical):
#: TYPE NAME SIZE IDENTIFIER
0: GUID_partition_scheme *494.2 GB disk2
1: EFI EFI 209.7 MB disk2s1
2: Apple_APFS Container disk3 494.0 GB disk2s2
/dev/disk3 (synthesized):
#: TYPE NAME SIZE IDENTIFIER
0: APFS Container Scheme - +ERROR disk3
Physical Store disk2s2
^ my thumbdrive is on /dev/disk2 and 3.
Running First Aid on Disk Utility returns this, which does not solve the problem:
Repairing storage system
Performing fsck_apfs -y -x /dev/disk2s2
Checking volume.
Checking the container superblock.
Checking the EFI jumpstart record.
Checking the space manager.
warning: spaceman chunk 2266 free count 4294947960 > block count 32768
warning: spaceman main free count 6291015 does not match sum of free counts 6310351
Checking the object map.
Checking the APFS volume superblock.
Checking the object map.
error: /dev/disk3s1 is not encrypted
Checking the fsroot tree.
error: drec_key object (oid 0x10ae62): invalid hash (0, expected 2bc5d) of name (.ConnectableObservable.ts.1DIRuT)
fsroot tree is invalid.
The volume /dev/disk2s2 could not be verified completely.
Storage system check exit code is 0.
Operation successful.
What should I do to the save/retrieve the data in the thumbdrive? ;(;(
