How to Back up Catalina
I see Catalina has 2 "volumes": a catalina, and a Catalina data.
I wish to back up the "complete Catalina drive", do I just backup the catalina volume and not the catalina data volume, and it will do the trick? Or do I need to back up both volumes? Thanks. |
You need to use v3.3, which is Catalina compatible. That automatically backs up both volumes in the volume group.
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The question actively being discussed on at least two Mac email forums is whether it's imperative that SuperDuper! clones on rotating platter hard drives MUST be to APFS-formatted drives, because APFS rotating platter drives are GLACIALLY slow as boot drives.
I'm not sure whether there's a Disk Utility default in Catalina when making a new external drive bootable that it be formatted APFS, or whether one can manually select HFS extended, and also whether an external drive formatted HFS extended can boot a T2-security chip equipped MacBook Pro can be used as a SuperDuper! clone. Thanks so much, Jim Robertson |
Catalina copies MUST be made to APFS volumes. There is no choice: HFS+ does not support volume groups.
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Thanks so much. As an end user, it's relatively rare that a succinct explanation like that is something I understand easily, and I appreciate your patiently addressing my questions.
I tried to look up the answer myself in the pdf user guide, but it's a bit long in the tooth (recommends FW external drives as the ideal backup repository, and contains not a single mention of APFS), but it's obvious Apple has made creating clone type backups a moving target! |
It's more than the file system itself is a moving target - the transition from HFS+ to APFS was one, and now APFS to "volume group" APFS is another...
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I have a question related to this also. I understand that SD can work with Volume Groups, so that Data/System are both backed up now...here are a couple questions though..
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