Select your Source disk and your Target disk (red arrows, below left). You will be presented with the 'Cloning Console'.ġ. Thus, for example, Final Cut Pro will not launch when the cloned drive is attached to a different Mac as the system IDs will not match.ĭownload Carbon Copy Cloner and place the application in your Utilities Folder found inside your Applications folder. I need to point out that not all third party applications will run from a Mac other than then one they were installed onto as when you serialize an application it may also include the system ID for the Mac that it was installed into. When I cloned my OS X startup drive I included everything, all my applications as well. This gives me portability as I can plug the Firewire drive into any Mac, anywhere, and boot from it, putting me right back into my own system. I purchased a LaCie external FireWire hard drive which I partitioned and then cloned my OS X drive to. There is one addition reason for having a cloned startup drive. Another reason would be for installing OS, QT, or application updates when you are not sure of the outcome or are in the middle of a project and do not want to risk encountering problems that could be caused by updating. If you started having problems with your main drive (even a crash) you could reboot from your clone drive and continue on with your work until such time that you could go back to the problem drive and deal with it. So why would you want to have an exact clone of your startup drive? Several reasons actually. It is also possible with CCC to clone your system from a drive or partition to an other drive or partition. This utility also allows you to automatically update (from your main startup drive) your cloned drive on a regular scheduled basis. It even goes beyond generating a cloned drive. It also enables you to create an exact clone of your startup drive applications, files, folders, internet settings, etc. While this five dollar shareware utility is simple to use, it does more than just create a new bootable drive. So how does one create a second boot drive in these days of OS X? Actually is rather simple using Carbon Copy Cloner © by Mike Bombich. You can't drag what you can't see and those invisible files are essential to creating a boot drive. So simply dragging the Mac OS X System folder to a second drive won't do it. As OS X is UNIX based there are now a number of invisible files that are need by the Mac to be able to boot from a drive. Everything need by the Mac to start up from a drive was contained inside the System folder. One simply dragged the System folder from your start up drive to a second drive, that was all there was to it. Back in the 'good old days' of Mac OS 9 and earlier, it was easy to create a second 'Boot' drive. To clone or not to clone-and we're not talking sheep here. How to create a second Boot drive in OS X. The volume rewinds in time to that point.'White Paper' - Carbon Copy Clone a Boot drive For details on working with CCC’s use of APFS snapshots, read on.ĪPFS allows the creation of a snapshot as a sort of “fast rewind.” Instead of restoring everything on your volume, if you restore from an APFS snapshot, only the changes between the current state of your volume and the state of the snapshot need be applied. Apple started rolling out APFS a few releases of macOS ago. Carbon Copy Cloner: Bombich Software’s backup software automatically creates snapshots using a feature in the APFS filesystem when your startup volume is an SSD.A Time Machine backup volume also has snapshots that let you revert files or a volume to a particular moment, but those don’t occupy space on your startup volume. You can use the advice in this column from 2018 which describes how to determine whether these snapshots are in place and offers instructions on deleting them. Time Machine: Time Machine writes temporary snapshots to the local volume in preparation of copying them to a local or network volume that’s not immediately available.You might encounter snapshots seemingly filling your startup volume from one of two pieces of software:
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