I have a disk with DualBoot Mojave and Catalina Beta in a single container. Catalina Beta has two volumes: 'MacOSBeta' and 'MacOSBeta - Data'.

I want to delete the Catalina Beta os. Is it as simple as deleting the Catalina Beta volumes?

  • Do you have one APFS container? Most good dual boot guides for Catalina should be like that, but let’s clarify if possible. – bmike Sep 4 '19 at 7:38
  • @bmike yes, both are in the same container. – Blazej SLEBODA Sep 4 '19 at 7:40

Yes, APFS containers make it trivial to erase a volume since the free space commingles, you can walk away from the data once you’re sure you have a back up or don’t need one.

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