How to disable Time Machine's 'use disk' prompt.

How to disable Time Machine from asking to use attached drives.

If you swap your bruCLONE disks, or even just create your clone and then store the disk offsite, you have more than likely noticed that when you plug that drive back in to the Leopard system that Time Machine asks if you want to use that drive for Time Machine.  If you do this often then you see this question a lot.  If you would like to disable Time Machine from asking if you want to use the drive, simply perform the following steps:

Important Note: You must be an Administrative user to apply this command.  If you are not an Administrator, please contact your Administrator to have them run this command for you.

  1. Open the Applications folder.
  2. Open the Utilities folder.
  3. Double-click on the "Terminal" icon.
  4. When the Terminal application appears, execute the following command (you may copy and paste):

$ sudo defaults write DoNotOfferNewDisksForBackup -bool YES

When you're prompted for the password, enter your user password and press [ENTER] (a.k.a [RETURN]). Then close the Terminal window and you're done!

There is another method that may be used if the above command does not work.  The same steps are taken, but a different command is used, that command is:

$ sudo defaults write /Library/Preferences/ DoNotOfferNewDisksForBackup -bool YES

To reverse this for either command, simply change "YES" to "NO" in the two commands above.

Legal Note: These commands are provided as-is and TOLIS Group assumes no liability if you choose to attempt to run either of these commands, nor does TOLIS Group Technical Support offer support for these commands.. These commands are provided as a options and are not required to be run in order to use any TOLIS Group product.  Please see the Legal Restrictions & Terms and Conditions for Use of Web Site for more information.