What's the correct way/format to add my encrypted GRUB password to menu.lst?

[ryand85]

Hi,

Just wondering what is the correct format and way to add my encrypted GRUB password to /boot/grub/menu.lst and how do I know/ensure the changes have worked? Thanks.

[anomie]

See info grub -- Security section.

(In code blocks to preserve formatting)

   Thus, GRUB provides a "password" feature, so that only administrators
can start the interactive operations (i.e. editing menu entries and
entering the command-line interface). To use this feature, you need to
run the command `password' in your configuration file (*note
password::), like this:

     password --md5 PASSWORD

   If this is specified, GRUB disallows any interactive control, until
you press the key <p> and enter a correct password.  The option `--md5'
tells GRUB that `PASSWORD' is in MD5 format.  If it is omitted, GRUB
assumes the `PASSWORD' is in clear text.

   You can encrypt your password with the command `md5crypt' (*note
md5crypt::). For example, run the grub shell (*note Invoking the grub
shell::), and enter your password:

     grub> md5crypt
     Password: **********
     Encrypted: $1$U$JK7xFegdxWH6VuppCUSIb.
 
   Then, cut and paste the encrypted password to your configuration
file.

[devils casper]

check this thread.