That having been said, CCC and SD are still very good tools for cloning data volumes, even if they can’t currently make a bootable clone of the system volume. So this is really yet another instance of early adopters having to deal with not-quite-finished system software. Apple (and the error from their tool) both say “not yet”, not “no”. The key words in the error message, I guess, are “not yet.”Īs pointed out, this is a temporary problem. “When Apple posts an update to macOS that resolves the ASR problem, we’ll post an update to CCC that adds back support for copying the System volume on these Macs.” Please keep in mind, however, that your CCC backup does not have to be bootable for you to be able to restore data from it. If you would like to make your Apple Silicon Mac backup bootable, you can install Big Sur onto the CCC Data Volume backup. CCC 5.1.23+ will automatically perform Data Volume backups on M1 Macs and avoid any attempts to copy a System volume on those Macs - that’s a complete backup of your data, applications, and system settings. "Apple is aware of the problem and is working towards resolving it for a future update to macOS. 'Apple System Restore Tool': Source volume format not yet supported in this version of macOS "In the current shipping version of macOS Big Sur (11.0.1), Apple’s ASR utility cannot replicate the startup disk in an M1-based Mac. The nuances you summarize are presumably what allow Mike Bombich to say, in his discussion of “Big Sur Known Issues” in CCC’s documentation, that Nanian’s core business as people who work and present remotely grow to depend on iOS or iPadOS hardware for fail-safe data access. So, in a somewhat bizarre way, the Intel to “Apple Inside” evolution may hasten the end of Mr. The best solution to this dilemma may be either to carry TWO laptops if one’s job depends on access to the “first team” machine’s data AND the ability to manipulate it or present it to others at any time day or night, or perhaps carrying an M1 laptop AND an iPad Pro, and those choices may, for such road warriors, eliminate the attractiveness of SuperDuper or CCC.Įven if corruption on the internal boot partition DOESN’T make the ISC container inaccessible (so that the non-bootable clone is still helpful in recovery, the need to install the System partition from the Internet Recovery partition might delay access to the DATA partition on the clone long enough so as to make that solution no longer palatable. And, the combination of Big Sur and an M1 Mac laptop may create an insurmountable obstacle. Thanks to their dogged persistence in enabling the creation of bootable clones, people who depend on their laptops to be both reliable and protected from “sudden death” by the ability to boot from a cloned external device can update their presentations, legal briefs, budget proposals or whatever they need to recover instantly on any Intel Mac running any macOS up to Catalina. Nanian both have a very strong fan base, and deservedly so. I’ve stayed with Catalina because of this issue I suspect I’ll not update to an M1 laptop any time soon, for the same (almost) reason.
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