View Full Version : Consistent failure at password protecting GRUB

February 18th, 2014, 02:48 AM
OK, so I've tried several times to password protect GRUB. I've used the guide found here (http://www.howtogeek.com/102009/how-to-password-protect-ubuntus-boot-loader/). The last time around, I even made a username with a cleartext account just to see if the hash was causing a problem, but no matter what I try,I get error messages. The most recent one that I get upon starting up says "error: SecureBoot forbids loading module from (dh0,gpt2)/grub/x86-64-efi/password.mod". After I correctly enter my username and password, it always prevents me from logging in.

February 18th, 2014, 03:01 AM
That guide seems to be missing some crucial steps.
This is probably better

My own advice would be to try adding an entry for something like the recovery mode first, then try expanding it to other menuentries.

February 18th, 2014, 05:23 AM
Thanks for your reply. :-) I just finished following those instructions to the letter (or at least I think I did.) I saved everything, restarted, and as soon as it booted up, I saw "error: not an assignment." I entered my name and password, and received "error: access denied."

February 18th, 2014, 05:31 AM
Did you update grub?

sudo update-grub
Nothing in grub changes until this is run.

Edit: If you have run update-grub and the problems still arises, would you please post the out for the files you edited.
00_header and 10_linux and 39_os-prober and any others if you have edited them as well.
USE CODE TAGS (http://ubuntuforums.org/showthread.php?t=2171721) , please.

Also, if you want to edit out the password stuff, that's fine, as long as the rest is there as is.