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From where is the grub2 password set?

asked 2013-05-20 15:38:57 -0500

BRPocock gravatar image

updated 2013-08-26 12:31:36 -0500

ryanlerch gravatar image

Related to another question I posted about problems following a FedUp update to Fedora 18, on one host I'm unable to access the extended Grub commands because of password protection.

I presume this was supposed to be a migration of a previous Grub password which I'd set, but I'm now also prompted for an user name. I've tried my own (sudo-capable, user # 1000) and root, with the prior password, to no avail; I've also tries using my user name and login password, as well as root's, but also no joy.

From where am I supposed to be able to set (or reset) the password? Once the system boots, I do have sudo and root privileges, but there's no hint of how the password can be changed once the system is installed ...

This is an x86_64 laptop with BIOS boot mechanism, if that helps.

Sadly, grub2 installs with quite literally zero documentation, and its configuration files make me nostalgic about ... :-(

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answered 2013-05-20 15:49:24 -0500

mether gravatar image

updated 2013-05-20 15:55:26 -0500

Yeah. GRUB2 is pretty convoluted. Grep for password in /etc/grub.d and see which entry has the password set and you can help to understand how to reset it.

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Asked: 2013-05-20 15:38:57 -0500

Seen: 677 times

Last updated: Aug 26 '13