[Trisquel-users] Re : Unable to boot Trisquel 6.0 from GRUB

[magicbanana]

The lead developer thinks setting a GRUB password (randomly generated during  
the install) improves the security even if the bad guy has a physical access  
to the computer. Well, it does not: boot any live system (such as the one you  
used to install Trsquel), mount the root partition of your Trisquel install  
and read /etc/grub.d/01_PASSWORD ('sudo cat /etc/grub.d/01_PASSWORD') to know  
the password. If you want to remove it, you can too ('gksu gedit  
/etc/grub.d/01_PASSWORD' and comment/remove the two lines in it).

For more information about this choice of a GRUB password you can read this  
thread.