I was trying to find /boot/grub/menu.lst OR /boot/grub/device.map as usual on Ubuntu Desktop or other versions to change the GRUB selection, but there is no file munu.lst or device.map in the grub directory. Where can I find GRUB's configuration file? to modify the grub selection

  • 4
    I can't follow what exactly you are trying to remove, but you are using GRUB2, not GRUB. Its configuration file is /boot/grub/grub.cfg, but unless you provide more details, it's difficult to give you advise.
    – htorque
    Feb 9 '11 at 10:00

The file you need is /etc/default/grub and run sudo update-grub after you've made your changes.

  • Or just /boot/grub/grub.cfg, that's the file that gets generated when you run update-grub. Anyway, your way indeed is better as otherwise your grub.cfg would be reset every time update-grub is used.
    – RobinJ
    Jun 22 '11 at 16:48

You can also try GRUB Customizer if you'd like to work w/ a GUI.


sidenote : Ubuntu 10.10 will keep grub-legacy if you upgrade from a previous ubuntu distribution but install by default grub2 otherwise. https://help.ubuntu.com/community/Grub2 has information about both upgrading grub-legacy -> grub2 and reverting grub2 -> grub-legacy if you happen to experience problems with the new approach.

otherwise, yeah. /etc/default/grub is the place where you now need to check. Note that the "automagic options" system has completely changed, too.



Spy on this, please: Grub-Customizer (How to fix your dual-boot in case you miss the right boot option)

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