I am asking for help on getting back into my MacBook Pro. I finally allowed a software update. I was a bit careless and didn't check what was updating. The account refuses my password, so I hold down command-R to boot in recovery mode.
I open a terminal and if I type:
diskutil APFS list
I get the following output (abbreviated):
Volume disk2s1 --------------------- APFS Volume Disk (Role): disk2s1 (No specific role) Name: Mackintosh HD (Case-insensitive) Mount Point: Not Mounted Capacity Consumed: 73577095168 B (73.6 GB) Encrypted: ERROR -69808 Attempting to repair fails: diskutil repairvolume disk2s1 Started file system repair on disk2s1 Macintosh HD Repairing file system Volume is already unmounted Performing fsck_apfs -y -x /dev/rdisk2s1 error: mount_apfs exit status 73 File system check exit code is 78 Restoring the original state found as unmounted Error: -69845: File system verify or repair failed Underlying error: 78 Running fsck_apfs -n -d /dev/rdisk2s1 gives mount_apfs: mount: Input/output error error: mount_apfs exit status 73
Any ideas how to recover the data?