I have an external SSD I've used for a while with no issue. I've recently been using it on my iPad on the go, also with no issue.
When I wanted to use it on a Mac today (after using it on my iPad for a while), the disk wouldn't mount anymore. Still does on the iPad for some reason. Tested on MacOS 12.2 & 12.2.1
Any ideas as to how this can happen ?
Here's what Disk Utility's First Aid tells me:
Running First Aid on “ExtSSD” (disk8s1)
Checking file system and repairing if necessary and if possible.
Volume is already unmounted.
Performing fsck_apfs -y -x /dev/rdisk8s1
Checking the container superblock.
error: (oid 0x14e776) om: invalid o_oid (0x71ff)
error: (oid 0x14e776) om: invalid o_type (0x3, expected 0x4000000b)
error: (oid 0x14e776) om: invalid o_type (0x3, expected 0x4000000b)
error: verification/reading of the omap object failed: Illegal byte sequence
warning: checkpoint 192 (xid 26927) failed consistency check
Checking the space manager.
error: spaceman cib out of order: 0, expected 2
Space manager is invalid.
The volume /dev/rdisk8s1 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. : (-69845)
Operation failed…
Or directly Via CLI:
❯ sudo fsck_apfs /dev/rdisk8s1
** Checking the container superblock.
error: (oid 0x14e776) om: invalid o_oid (0x71ff)
error: (oid 0x14e776) om: invalid o_type (0x3, expected 0x4000000b)
error: (oid 0x14e776) om: invalid o_type (0x3, expected 0x4000000b)
error: verification/reading of the omap object failed: Illegal byte sequence
warning: checkpoint 192 (xid 26927) failed consistency check
Checking the checkpoint with transaction ID 26926.
** Checking the space manager.
error: spaceman cib out of order: 0, expected 2
Space manager is invalid.
** The volume /dev/rdisk8s1 could not be verified completely.