Ask Different is a question and answer site for power users of Apple hardware and software. Join them; it only takes a minute:

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

I want to replace my current TimeMachine backup disk with a new disk, but I also want to copy the existing contents to the new disk after encrypting the new disk.

How can I best do that? Are there any pitfalls waiting for me?

share|improve this question

Apple has some instructions in this KB. There are some restrictions - Apple suggests that you'll need to format the new drive as Mac OS Extended with a GUID partition.

Short summary:

Drag the folder "Backups.backupdb" on the current backup drive to the root level of the new backup drive.

Follow the other instructions in the KB, and you'll be able to use your new drive as the TimeMachine drive.

share|improve this answer

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.