I don't understand your fix.
I am still stuck with a corrupt APFS container. Here's my problem:
My Fusion Drive in my iMac is now unreadable, since the iMac rebooted and couldn't boot into macOS anymore. The Fusion Drive with APFS is now only shown as greyed out "APFS Physical Store disk0s2", "APFS Physical Store disk1s2" ... all data must still be there, but the APFS container seems to have currupted, like it has happened to me a myriad times before on external HDDs.
Since there is still no tool available that can repair APFS containers, how can I fix my drive? I'm coing to report this to Apple.
I deleted my backup shortly before since it was faulty and I needed a new one, and now I have NO Backup!
Apple, what's going on there? Why does your APFS keep crashing randomly on my HDDs and now my Fusion Drive, making all APFS Volume in the respective containers vanish?
As I see it, the partitions are still shown as being APFS-partitions, but there are no valid containers found.
Hence, the normal partition map seems intact, the APFS-partition map (I guess that's how the containers work) seems to have gone corrupt.
fsck_apfs would only return the partition's block that conatins this info:
0160: 02c3 496e 7661 6c69 6420 7061 7274 6974 |..Invalid.partit|
0170: 696f 6e20 7461 626c 6500 4572 726f 7220 |ion.table.Error.|
0180: 6c6f 6164 696e 6720 6f70 6572 6174 696e |loading.operatin|
0190: 6720 7379 7374 656d 004d 6973 7369 6e67 |g.system.Missing|
01a0: 206f 7065 7261 7469 6e67 2073 7973 7465 |.operating.syste|
01b0: 6d00 0000 0062 7a99 90e1 0713 0000 0000 |m....bz.........|
Neither Disk Utility nor fsck_apfs help.
HELP ME!