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cameronjpu

macrumors 65816
Original poster
Aug 24, 2007
1,371
85
So these days, using CCC to clone a HDD onto an SSD (for upgrading a Mac) usually (always?) requires then reinstalling the OS. My question is this - am I able to install the OS onto the USB connected, recently cloned SSD, directly from within the OS right after the clone? Previously I have installed the SSD into the computer, then run the Monterey OS from a USB drive to get the system booting. If I could do it directly after the clone, it would save some trouble. Anyone have experience doing it this way? Thanks -
 
Once you have set up the copy from one drive to the second, click on the destination drive.
There you will see an option -- "Legacy Bootable Copy Assistant..."
Click on "Allow CCC to erase [destination]"
That will give you a complete, bootable copy of the source drive on the destination.
 
Ah, I did read about that option but "legacy" made me assume it was not for something on OS11/12. Why do you think they call it that? Right now I have already started the clone - should I cancel it and run again with that option, or can I set it while it's cloning?

Edit: just read over the Bombich FAQ again. Do you have any idea of the reliability of using this legacy option, or should I just do what I've been doing, do the CCC clone and then install Mojave on first boot. Any thoughts?
 
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Ah, I did read about that option but "legacy" made me assume it was not for something on OS11/12. Why do you think they call it that? Right now I have already started the clone - should I cancel it and run again with that option, or can I set it while it's cloning?

Edit: just read over the Bombich FAQ again. Do you have any idea of the reliability of using this legacy option, or should I just do what I've been doing, do the CCC clone and then install Mojave on first boot. Any thoughts?

I have used it a number of times on my late 2015 iMac, with operating systems up to and including macOS 12.5ß, with no problems.
 
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