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            macOS 15.2 Sequoia Breaks Bootable Backups in SuperDuper

   Adam Engst

   On the Shirt Pocket Watch blog, [1]SuperDuper honcho [2]Dave Nanian
   writes:

     macOS 15.2 was released a few days ago, with a surprise. A terrible,
     awful surprise.

     Apple broke the replicator. Towards the end of replicating the Data
     volume, seemingly when it's about to copy either Preboot or
     Recovery, it fails with a Resource Busy error.

     '¦

     Because this is their code, and we're forced to rely on it to copy
     the OS, OS copying will not work until they fix it.

   I haven't seen any comments about how this affects [3]Carbon Copy
   Cloneror[4]ChronoSync, but if the problem is in Apple's asr (Apple
   Software Restore) tool, those apps would likely be similarly affected.
   Until Apple fixes the bug, you can protect your work with a data-only
   backup of everything except the system, as I wrote in '[5]The Role of
   Bootable Duplicates in a Modern Backup Strategy' (23 February 2021). In
   the event of a disaster, you would reinstall a clean version of macOS
   and then restore your data with Migration Assistant.

   [6]Read original article

References

   1. https://www.shirt-pocket.com/SuperDuper/SuperDuperDescription.html
   2. https://www.shirtpocket.com/blog/index.php/shadedgrey/youre_a_mean_one/
   3. https://bombich.com/
   4. https://www.econtechnologies.com/chronosync/overview.html
   5. https://tidbits.com/2021/02/23/the-role-of-bootable-duplicates-in-a-modern-backup-strategy/
   6. https://www.shirtpocket.com/blog/index.php/shadedgrey/youre_a_mean_one/

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