Stop asking for password on boot

[kr651129]

Is there a way to make Ubuntu not ask for a password on boot with an encrypted hard drive?

[cariboo]

Is there a way to make Ubuntu not ask for a password on boot with an encrypted hard drive?

You need the password to unlock your encrypted drive, or what's the sense in encrypting it.

[bodhi.zazen]

Yes, you can do this with a key file. The key file can be stored on the hard drive or more commonly a flash drive.

http://www.howtoforge.com/automatically-unlock-luks-encrypted-drives-with-a-keyfile

[Stonecold1995]

Yes, you can do this with a key file. The key file can be stored on the hard drive or more commonly a flash drive.
This. But you have to remember, just because the drive is encrypted doesn't mean you should be careless with where you put the keyfile. If it's on a flash drive, anyone with access to the flash drive will have access to your computer.