Use MacOS Update file for installation on other volume/partition

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macos software-update upgrade data-transfer dual-boot

                          I have a M1 dual boot configuration with two installations of MacOS in separate APFS volumes. I recently updated one of them to Monterey. When I boot into the other system running Mojave, it also prompts for an update but tries to download the whole 12something GB update package  *again*. Is it possible to use the update file from the other installation on this one?
                        

Asked by cachius (301 rep)

Apr 11, 2022, 11:45 AM
Last activity: Apr 26, 2025, 05:03 AM

Use MacOS Update file for installation on other volume/partition

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