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Running 12.04. I am trying to separate my wrapped-passphrase for my encrypted home folder to require a USB drive be present to login.

I followed the instructions here and added the drive to my fstab, put the wrapped-passphrase file on the drive, and then created a symbolic link back to ~/.ecryptfs. The drive mounts fine but the symbolic link doesn't seem to be connecting the two as when I login it flashes a purple screen for a fraction of a second than takes me back to the login screen. What am I doing wrong?

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Could you run ls -l /home/youruser/.ecryptfs –  David Dec 27 '12 at 21:45
    
In addition to the above, please also do tail /var/log/syslog immediately after such a failed login attempt and post the output. This will contain any ecryptfs errors. –  tgies Dec 29 '12 at 14:57

2 Answers 2

This thread details how to use a USB stick as your boot device, though for different reasons. I like the fact that without the stick the machine appears to have no OS on it.

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Whilst this may theoretically answer the question, it would be preferable to include the essential parts of the answer here, and provide the link for reference. –  Eliah Kagan Jan 31 '13 at 14:43

Have you considered this: "How to Secure SSH with Google Authenticator’s Two-Factor Authentication"?

Its not a USB it is an app on our phone that generates a code.

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I dont think he is talking about google authentication –  Sreevisakh Mar 24 '13 at 17:26
    
I get that hes not talking about Google auth. (I read the post) I mentioned it because it is a two factor system, and it seems that the purpose of OP's link was to secure the hard drive with 2 factor. The google auth system is a "something you have" this it is somewhat relevant. i would have left that link as a comment, but I lacked the rep at the time. –  wlraider70 Mar 24 '13 at 18:52

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