ecryptfsencryptionpassphrase
When installing Ubuntu I chose to encrypt my home drive and after installation update information window came up:
Where I had to write down encryption passphrase. Well I closed it and it doesn't pop up any more. So the question is where can I find it to write down the passphrase?
"It depends".
Whole disk encryption will use LUKS and everything but /boot will be encrypted, including your data in /home.
This prevents unauthorized access to the system from a cold boot. Once the system is fully booted, however, everything, including /home, is decrypted.
Encrypting /home uses ecryptfs and your home directory will be encrypted when you are not logged in. This prevents root or other uses from accessing your data in /home. Your data, however, is decrypted as long as you are logged in.
Here it is, the second option:
Best Answer
Follow these steps:
Hit Ctrl+Alt+T to open terminal and run following command:
It will ask for a
Passphrase:, enter your login password and you'll get the key.