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Had some problems with my laptop a few days ago and I had to reinstall the system. I used the same password for the same user when I installed it and, after the installation finished, when I got to the login screen and entered my password, I got bounced back. I switched to tty1 and after logging in I got this:

Signature not found in user keyring
Perhaps try the interactive 'ecryptfs-mount-private'

I ran the command and entered my passphrase, but it didn't work. I did know my passphrase. I thought that the encryption files got corrupted somehow. I don't know how, but after lots of tries, system reinstallations and restarts (over a few hours), it worked eventyally (the same passphrase that initially didn't). I then rewrapped a new passphrase.

The problem I am encountering now is that every time I restart my computer the partition doesn't decrypt automatically when I enter my password on login. I always have to switch to tty1 and run ecryptfs-mount-private from there.

I tried many ecryptfs commands (unwraping and rewraping the passphrase), but nothing seems to work: ecryptfs-unwrap-passphrase, ecryptfs-rewrap-passphrase, ecryptfs-insert-wrapped-passphrase-into-keyring. The passphrase seems to be inserted in the keyring only for the session.

Is there any way I can make this permanent?

Alex Burdusel
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3 Answers3

8

Solved it with 

ecryptfs-rewrap-passphrase /home/my_user/.ecryptfs/wrapped-passphrase

The problem was that when I tried rewrapping the passphrase I was trying to set a passphrase different than my account password. It worked when I set it the same as my account password.

Nattgew
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Alex Burdusel
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0

I had the very same problem when updating my laptop from 12.04.5 to 14.04.2.

After fiddling around and (more or less willingly) deleting my "wrapped-passphrase" I used "ecryptfs-wrap-passphrase /home/my_user/.ecryptfs/wrapped-passphrase" with the mount-passphrase as "Passphrase to wrap:" and my login password as "Wrapping passphrase".

After that login is working again.

Pilot6
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Oliver Bedford
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I had a "$" sign in my password, had to escape it with a "\$".

e.g.

printf "%s\n%s" "4543245543gdsgfgssg23445" "loginpa\$s" | ecryptfs-wrap-passphrase /home/$user/.ecryptfs/wrapped-passphrase -
Pieter
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