Mac mini switches from one external SSD to another
by Poster
Aug 13, 2024
6
I used to use the Thunderbolt hard drive box to connect an external 1T SSD as the system disk, and the system in the built-in storage of the Mac mini was also retained. Now I want to switch to a 2T SSD. How to operate it better? Because there is only one Thunderbolt hard drive enclosure, it is not realistic to migrate two SSDs plugged into the Mac mini. I wonder if it can be migrated smoothly if I use Time Machine for backup?
Replies
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Anonymous2899 Aug 13, 2024The first reaction is a full byte-by-byte copy of dd, Anyway, you don't have a big enough hard drive to act as a middleman, and both hard drives must be mounted at the same time. There is only one Thunderbolt. Is there an ordinary hard disk box? If not, are there other computers that can directly plug into the hard disk? If not, there is no solution. They are all connected and then there should be no problem in expanding the capacity after copying the full dd disk.
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Poster Aug 13, 2024@ Anonymous2899 What I want is to use Time Machine to back up the current system on a 2T mobile hard drive and then transfer it to it. However, the Mac mini's built-in storage also contains the previous system. Time Machine will back up two systems at the same time. I don't know if the transfer is feasible in this case. Can the dd command also copy APFS volume information?
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Anonymous2899 Aug 14, 2024@ Poster # 2 dd is a complete copy, including partition tables, containers, volumes, and even the copied partition is still the original 1T size that needs to be adjusted later. Time Machine doesn't say that it will definitely back up all systems at the same time, right? Enter the external system and turn on the Time Machine to back up the external system. It doesn't matter whether the internal hard disk has a system or not. The process should be: enter the 1T system, add two files A and B to the 2T hard disk, turn on the time machine, select backup to file A, then install the system in file B, enter the B system, and use the migration assistant to restore the backup in file A.
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Poster Aug 14, 2024@ Anonymous2899 I tried using Time Machine backup, that is, I backed up the data of two system disks at the same time, so I don't know what Time Machine will do when restoring...
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Anonymous10323 Sep 10, 2024JD.com next day delivery, seven days...
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Anonymous10324 Sep 11, 2024Time Machine If you want to reinstall the system on a new disk and then choose to restore from Time Machine, it will be more troublesome. In fact, divide the areas, use ccc to copy the disk, and it will be ok after all the files. Pay attention to the system that comes with the macmini itself and do not erase it. When booting, press and hold the power button to select the external hard disk. When booting, it will be on the system that comes with the machine. A new boot is generated in that system.