{"id":25587,"date":"2019-06-06T16:31:44","date_gmt":"2019-06-06T20:31:44","guid":{"rendered":"https:\/\/mjtsai.com\/blog\/?p=25587"},"modified":"2019-07-10T17:17:21","modified_gmt":"2019-07-10T21:17:21","slug":"backing-up-macos-10-15-beta","status":"publish","type":"post","link":"https:\/\/mjtsai.com\/blog\/2019\/06\/06\/backing-up-macos-10-15-beta\/","title":{"rendered":"Backing Up macOS 10.15 Beta"},"content":{"rendered":"

Dave Nanian<\/a>:<\/p>\n

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FYI, anyone using Catalina - SuperDuper does NOT work properly. Please don’t rely on it under Catalina until we’ve managed to figure out why, or if it’s possible.<\/p>\n<\/blockquote>\n\n

Mike Bombich<\/a>:<\/p>\n

In the Finder you’ll only see one volume that represents your startup disk and it will appear as if everything is on that single volume. In reality, the startup disk that you see in the Finder is the read-only system volume and doesn’t have any of your<\/em> data on it; the “Data” volume is separate and hidden.<\/p>

[…]<\/p>

Allow me to be the first to say it: stick a fork in it, HFS is done. HFS simply won’t work for making a backup of a Catalina system volume, so in the near future, we’re going to drop support for backing up macOS (Catalina and later) to HFS+ formatted volumes.<\/p><\/blockquote>\n\n

Dave Nanian<\/a>:<\/p>\n

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Anyone out there able to create a disk group under Catalina with diskutil? I keep getting (\n(disk3s1 role S):<\/p>\n

diskutil ap createVolume disk3 APFS \"MacBook Backup-Data\" -role D -groupWith disk3s1\n<snip>\nError: -69624: Unable to add a new APFS Volume to an APFS Container<\/pre>\n
The answer, if anyone cares, is that you have to add a system volume to a data volume. You can’t add a data volume to a system volume. Because…reasons?<\/p>\n<\/blockquote>\n\n
Previously:<\/p>\n