The restore function isn’t just for drives.
Instructions in this article apply to devices running macOS 10.11 (El Capitan) and later.
It also makes an almost exact copy of the source unit.
The results are almost an exact copy of the original.
A file copy copies the data file by file.
This ensures that block data doesn’t change during the copy process.
Dont worry, though; you dont have to do the unmounting.
Disk Utilitys Restore function takes care of that for you.
Launch Disk Utility, located at /Applications/Utilities.
you’ve got the option to find instructions cloning a drive using an earlier version ofDisk Utility.
In the sidebar, choose the volume to which you want to copy/clone data.
The volume you select will be the destination drive for the Restore operation.
Select Restore from Disk Utilitys Edit menu.
The Restore process will begin.
A new drop-down sheet will display a status bar indicating how far along in the Restore process you are.
you might also see detailed information by clicking the Show Details disclosure triangle.
Once the Restore process is complete, the drop-down sheets Done button will become available.
Click Done to shut the Restore sheet.
Your startup drive can’t be active if you want to restore it.
A complete step-by-step guide is available inUse the Recovery HD Volume to Reinstall OS X or Troubleshoot Mac Problems.
Why Use Disk Utilitys Restore Function?
Disk Utility is free and included with every copy of the Mac OS.
