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I am running a dual-boot with Ubuntu (10.10) and Windows 7. Recently I edited my /boot/grub/grub.cfg file to only show one version of Ubuntu (as opposed to several kernel versions) and Windows, simply by commenting out all other menu entries. My question is if I can edit GRUB to just boot a specific entry automatically.

I tried removing all other menu entries, but GRUB still showed the menu with only one entry. I've also considered just setting the timeout to either 0 or 1 second, as this would basically achieve the same thing.

What is the best way to do this?

migrated from stackoverflow.com Feb 17 '11 at 23:17

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4

The correct way to modify your grub2 settings in Ubuntu is by editing /etc/default/grub and then running update-grub (the file /boot/grub/grub.cfg is not meant to be edited). You can find more information here.

Using Ubuntu Startup Manager can be of use if you prefer a GUI to do the changes.

  • StartUp-Manager is obsolete, its development stopped <2011. StartUp-Manager is incompatible with Ubuntu 11.10 and newer – Impulss Sep 21 '13 at 1:19
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The Ubuntu StartUp Manager should do exactly what you want.

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You could add following line to menu.lst:

 hiddenmenu

this will hide the menu, and then maybe set timeout to 0 or 1 (I don't know how timeout=0 behaves exactly).

edit: oh yes, and set line

default=##

where ## is the menuitem number starting from 0

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