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Since I've been using for Time Machine for a long time with several machines that I no longer have, I would like to do some cleanup on my password manager but I don't want to erase my current Time Machine password by mistake. How can I test my time machine password in some simple way? I'm assuming I can do it from the recovery screen but that would be pretty painful if I have to try out several passwords, most of which are pretty long. Any way I can test it from OSX running normally on my laptop?

Thanks.

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  • Can you first copy the backup to another location (to avoid impacting the original) and then unmount and remount it? It should ask for your password to remount. You definitely want to do this on a copy because giving the wrong password will prevent you from getting at those files again. Yes, it can be time-consuming if you're wrong but it would help if you're correct.
    – fsb
    Mar 10 '20 at 2:56
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+50

The best way is:

  • backup every of these passwords.
  • remove them one-by-one and mount and unmount your current Time Machine hard drive.
  • Once you are prompted for a password to decrypt the Time Machine backup, it means that you removed the only password you needed.
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  • 1
    Thank you, that got me to the password I wanted. I'm still going to do a recovery into another disk just to be absolutely sure.
    – casolorz
    Mar 12 '20 at 20:21
  • You are welcome :)
    – Nibor Ndj
    Mar 19 '20 at 9:46

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