Fingerprint recognition login and encrypted home don't work together
On 05/02/2012 05:44 AM, Gilles Gravier wrote:
> If you plan to try, like myself, to use fingerprint recognition, while
> using encrypted home directory, then you should know that it just
> doesn't work.
> There are 2 issues at hand, here...
> 1) The .fprint directory, which stores the fingerprint database of a
> user, is stored in the encrypted home directory. So is not available to
> the greeter application to recognize prints. This is what causes the
> "Could not locate any suitable fingerprints matched with available
> hardware" message on the login prompt.
> 2) If you decide to copy these files to /home/YourUser from a command
> line, without the encrypted home there, then you can actually login from
> the greeter session, with recognized prints. But then a second
> phenomenon appears. Since you didn't type your password, there is
> nothing to unlock your home directory encryption key... which means it
> doesn't get decrypted... which means you get kicked out of your session
> immediately as no configuration files are available.
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