I am using Ubuntu 13.10, which I installed almost 6 months back. While installation I selected HOME folder encryption. However, being a newbie I did not note mount passphrase(I thought how important this could be ! apparently that is all I need right now). Everything worked fine until 3 days back. I changed my login password, locked the screen and unlocked it using new password to make sure everything is fine. A few seconds later the computer shut down due to power supply cut-off (yes, battery is dead , hence the machine is directly powered by cable). I restarted the laptop and I was not able to login, the login screen was being thrown back after correct password entry(so basically there was a login loop). However, I was able to login to tty1 with the error message:
" Signature not found in user keyring.
Perhaps try the interactive 'ecryptfs-mount-private' "
I tried solutions this , this and this. These basically suggest to
1) Deleting ~/.Xauthority
2) sudo chown -R $USER:$USER $HOME
3) sudo dpkg-reconfigure lightdm
4) sudo chmod a+wt /tmp
None of these work.
Now all I hope is to recover my 6 months of work(coding project I was working on). Using sudo ecryptfs-recover-private (either via another account or live usb) prompts me for login passphrase. I tried using the new password or the preceding password. But both throw error:
"Error: Unwrapping passphrase and inserting into the user session keyring failed [-5]
Info: Check the system log for more information from libecryptfs "
I have changed the login password a couple of times during last 6 months. I only remember last 2 passwords i.e. the one which is throwing login loop and one previous to that.
Could you please tell me if something can be done to recover data ?
