I used my iMac as a hard drive backup to my macbook once. Now when I update to El Capitan he says that it cannot be updated due to being of a backup. How do I change the drive mode so I can update?

I used my iMac as a hard drive backup to my macbook once. Now when I update to El Capitan he says that it cannot be updated due to being of a backup. How do I change the drive mode so I can update?

If you use your iMac as a backup to disk using Time Machine look for a folder called Backups.backupdb.

It's what keeps you upgraded your operating system, you must remove it.

Copy everything first if you are on a different drive. It would be wise to create a backup of the iMac on another drive also.

Check system preferences > Time Machine and make sure that the iMac is not selected as the Time Machine drive.

Tags: Mac OS & System Software

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