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My 2017 iMac has Mojave on it. Again in 2019, I break up the onerous drive in half, and tried to scratch-install Catalina on the second half. It went badly, and I just about ignored it (besides as a spot to dump giant objects) for about two years. This month, I discovered a purpose to attempt once more, however I nonetheless must preserve an energetic Mojave on it till I am positive I’ve every part (or at the least every part mission-critical) working below Catalina (or later).
I requested a query about that final week, and based mostly on this, the plan was to clone the working Mojave partition into the secondary partition, after which, as soon as I had a working “backrelease” partition to fall again on, improve the first partition to Catalina.
So yesterday, after discovering that Disk Utility couldn’t clone the energetic boot partition, I attempted downloading “SuperDuper,” launching it final night time.
This morning, I discovered it had labored fantastic, UP TO THE POINT the place it started copying Restoration. Then it went unhealthy:
| 11:13:58 PM | Information | PHASE: 3. After Profitable Copy
| 11:13:58 PM | Information | ...ACTION: Updating Restoration on Backrelease HD
| 11:13:59 PM | Information | ......COMMAND => Updating Restoration quantity for Backrelease HD
| 11:14:10 PM | Information | Mounting /dev/disk1s3 (apfs) on /var/folders/cn/vsn822092lqdlp8g6psy47380000gn/T/com.blacey.SuperDuper/BE4A5BDE-6D33-45D5-BF16-69F5F6D6D52C/rcvtgt
| 11:14:10 PM | Information | ditto: /var/folders/cn/vsn822092lqdlp8g6psy47380000gn/T/com.blacey.SuperDuper/BE4A5BDE-6D33-45D5-BF16-69F5F6D6D52C/rcvtgt/326ED037-C72E-4BC2-9684-0D748BBDF031: Operation not permitted
| 11:14:11 PM | Information | Unmounting /dev/disk1s3 mounted on /personal/var/folders/cn/vsn822092lqdlp8g6psy47380000gn/T/com.blacey.SuperDuper/BE4A5BDE-6D33-45D5-BF16-69F5F6D6D52C/rcvtgt
| 11:14:12 PM | Information | Quantity Restoration on disk1s3 unmounted
| 11:14:14 PM | Error | Couldn't copy Restoration from Macintosh HD to Backrelease HD
Can any individual inform me what went incorrect, and what to do about it?
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