I have an external ssd with Big Sur beta installed.
Booting to the external ssd works just fine - I upgraded to 20A5395g yesterday.
However, I am unable (when booted to 10.15.7) to mount the Big Sur volume.
The dialog box that presents itself reads:
Could not mount "Big Sur Boot - Data".
(com.apple.DiskManagement.disenter error -119930868)
Is this by design? Can anyone else boot a working Big Sur volume onto a Catalina system?
Booting to the external ssd works just fine - I upgraded to 20A5395g yesterday.
However, I am unable (when booted to 10.15.7) to mount the Big Sur volume.
The dialog box that presents itself reads:
Could not mount "Big Sur Boot - Data".
(com.apple.DiskManagement.disenter error -119930868)
Is this by design? Can anyone else boot a working Big Sur volume onto a Catalina system?