After a reboot I am suddenly unable to mount an external USB-C SSD with Catalina 10.15.5
Disk Utility is recognizing the disk, I can see a "disk3" container with my APFS volume , but once I try to activate it I get a com.apple.DiskManagement.disenter error 49218
When trying a diskutil repair I get :
Started file system repair on disk3s1 1TB - SSD Repairing file system Volume is already unmounted Performing fsck_apfs -y -x /dev/rdisk3s1 Checking the container superblock Checking the space manager error: (oid 0xa550) cib: invalid o_cksum (0x0) error: failed to read spaceman cib 0xa550 Space manager is invalid The volume /dev/rdisk3s1 could not be verified completely File system check exit code is 0 Restoring the original state found as unmounted Finished file system repair on disk3s1 1TB - SSD
But disk still cannot be activated afterwards.
I already tried disk utility from recovery mode, no success... Also tried to connect the disk with another USB-C cable with no success...
Any idea on what to do to try to recover my data ? Is the disk damaged ? It's only 4 months old :o