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Fishrrman

macrumors Penryn
Feb 20, 2009
29,256
13,331
Give CCC a try, you won't believe how easy it is to "clone a drive".

You can also clone partitions of a drive, to other drives and/or partitions.

The initial clone will take a while to complete, as it copies EVERYTHING on your source drive.

Afterwards, "incremental" backups go much faster, because only changed files are copied.

Also -- if you do a backup clone of your internal (boot) drive, I suggest you do a "test boot" after the clone is finished. To do this:
- Leave the backup drive connected and powered on
- Restart
- As soon as you hear the startup sound, hold down the option key and KEEP HOLDING IT DOWN
- In a few moments, the startup manager will appear
- Use the arrow key to select the backup drive, then hit enter/return
- The Mac should boot from the backup

Note: doing a "switch-boot" as above does not change the setting in the "startup disk" preference pane. If you reboot again, the Mac should boot from the internal drive as before.
 
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