I'm playing with macOS 10.13 beta but a volume seems to have been corrupted during migration to APFS. I can boot and log in but soon get a "static screen". I launched recovery mode and launched disk utility. When trying to run First Aid I get exit code 65. So I started the terminal:
If I run
diskutil apfs list I see the volume encrypted and locked.
I then tried
diskutil apfs unlockVolume /dev/disk1s1 which unlocks AND mounts the volume.
fsck_apfs /dev/rdisk1s1 and
fsck_apfs /dev/disk1s1 give
error: container /dev/rdisk1 is mounted with write access.
How can I try and repair this volume? I suspect that something happened during the initial migrate and the volume is stuck in half APFS, half HFS+ somehow.
If I go back to "Disk Utility" and unmount the volume there and return to Terminal, then
fsck_apfs /dev/disk1s1 gives
error: container /dev/rdisk1 is mounted. I try and unmount the "Image Volume", but
diskutil umount /Volumes/Image\ Volume/ gives
Volume Recovery on disk1s3 failed to unmount: dissented by PID 0 (kernel)