fsck_apfs (8) The fsck_apfs utility verifies and repairs APFS containers and volumes. I've been using Jake Lo's e7470 OC Package with a few of my own touches and have/had a very stable Big Sur environment.
The error code 49168 is experienced while trying to create such a volume. It means the words ‘WORK’ and ‘work’ are treated as different files. Once you eject the APFS container, you need to fire up Terminal (Application > Utilities > Terminal). It seems like maybe APFS is only suitable for SSDs, so maybe that was our first mistake. 0 GB disk1 Physical Store disk0s2 1: APFS Volume. Expand APFS container using free space located before the container within macOS. Getting a 'This application is modifying the autolayout engine from a background thread' error? 208 'OSError: Operation not permitted' when installing Scrapy in OSX 10.