Post #3731411
2026-07-11 04:00 UTC
If you do disk to disk clone, you will make an exact copy of the source disk to the destination disk.
BEWARE of the booting from usb when the source drive is installed as well!
A modern OS uses UUID’s (identifiers) to manage the hard drives. You are effectively creating a drive and partitions with the SAME UUIDS!
There are steps to manage this, but understand it could cause you issues. A simple way to manage that is make sure to simply disconnect the internal drive in the bios when you boot from USB.
OR
Boot normally, and add a virtual machine to the host and run your USB drive inside the host VM.
Replies (1)
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@jbrains@sh.itjust.works 2026-07-11 11:43
Thank you for the warning. This is exactly the kind of thing that makes this not at all just as easy as creating a bootable backup of a Mac! And it’s the kind of thing that makes “this is easy” difficult to take seriously. Now I know what to search for and I will probably be able to piece it together.