I have prepared my external hard drive to be used for Time Machine backup by erasing and creating a new working recovery partition on it. I am ready to start the first backup, which I want to be encrypted. The message says this will erase the disk. Does this include erasing my recovery partition? If so, how can I both encrypt my backup drive and retain it as a recovery disk?

  • is it a hidden partition? – Ruskes Apr 10 '14 at 17:53
  • Yes. standard invisible partition. – MissouriSpiff Apr 10 '14 at 17:53
  • That should be enough for TM not to see it :) – Ruskes Apr 10 '14 at 18:00
  • Great! Thanks for your help. I went ahead yesterday, it took all night and a good part of today. But it seems to be working normally now. All partitions still there. – MissouriSpiff Apr 11 '14 at 20:10
  • Glad to hear it worked as planed :) – Ruskes Apr 11 '14 at 21:35

If you make your Recovery partition as Hidden partition, then the Time Machine wont touch it since it does not see it as available disk space.

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