MacBook Pro running Catalina Public Beta formatted APFS (encrypted)
External drive formatted APFS with two Volumes
CLONE (encrypted) containing a clone of the MBP drive while it was still running Mojave beta
ARCHIVE containing miscellaneous archived files
Convert the Mojave beta to a release version of Mojave to provide a stable system for routine use during the early phases of Catalina beta testing when not everything is working as advertised.
Boot from the Internet Recovery Drive (hold ⌥⌘R) during a cold boot, then select your network and enter the network password) This installs the latest release version of MacOS compatible with your computer.
Patience is a virtue and eventually MacOS 10.14.5 is installed over MacOS 10.14.6 beta on CLONE
The system boots from Mojave and then the unexpected happens…
I am prompted for the Macintosh SSD password (not unexpected)
I am prompted for the Macintosh SSD - Data password (what the H3𝄞𝄞 is Macintosh SSD - Data?)
It says Macintosh SSD so I assume it is the same password and enter that. — It works
Both Macintosh SSD and Macintosh SSD - Data appear in the Finder Sidebar
Disk Utility Shows both as APFS volumes on the same drive
Macintosh SSD appears to be the Recovery Volume
Macintosh SSD - Data appears to be the complete boot volume with all the invisible files and folders visible.
This may be normal when dealing with AFPS Volumes, but exposing the recovery drive and hidden files and folders on the external volume seems risky and contrary to long held Apple Practice. By-the-way neither of these volumes can be dismounted in Finder but the may be because they are not external drives. I can report this but I would like to know if anyone else has seen this behavior so I can determine if it is a function of my procedure?
Was your Mojave Beta clone bootable? If so, could you have started up from that and just done a System update, bypassing the Internet Recovery process? Or is a beta OS seen as newer and hence, no offer of an update?
On a Mac since 1984. Currently: 27" iMacs, Macbook Air, macOS 10.14.x,; iPhones, iPods and iPads galore!