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I edited /boot/grub/grub.cfg to reduce the Grub waiting time, but after recent update resets grub.cfg file to its initial state.

I know there is a way to make it permanent, but I don't know how. Please anyone advice.

(I tried to edit /ect/default/grub, but such a file does not exists in my system, 12.04 LTS)

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I tried to edit /ect/default/grub

It's /etc/default/grub, it exists on every 12.04 system, and you must have root privileges to edit it.

  • Use Alt-F2, then gksudo gedit /etc/default/grub
  • Don't forget to open a terminal (Ctrl-Alt-T) and run sudo update-grub to make the changes permanent!

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