Monday, April 30, 2018

login - Ubuntu 14.04 x64 encrypted home - signature not found in user keyring



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?



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.


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