note to self : don’t interrupt FileVault

Posted by Dick on December 17, 2007

I enabled FileVault on my MBP and cancelled the conversion when I saw how long it was going to take. When I tried to re-enable it again today, I got an error saying 

could not create filevault disk image

Google wasn’t very helpful, so I’m noting down the fix here, which is: 

sudo rm -r /Users/Shared/username.sparsebundle

 Turns out FileVault doesn’t use encrypted .dmgs(because they’re fixed size) but instead has a directory called username.sparsebundle (.sparseimage, pre-Leopard) that does the same job.This is initially created as /Users/shared/username.sparsebundle ,populated and only moved into place once the old home directory is deleted.

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  1. Michael Wed, 26 Dec 2007 07:33:42 GMT

    How can I save the old directory?

  2. Dick Wed, 26 Dec 2007 08:45:09 GMT

    @Michael: just create another admin user, log in as them, and then copy your original home directory to one side.

    That does sort of miss the point of securing the homedir in the first place though.

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