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I am setting up a dual boot install for my wife's computer. I would like to disable the timeout for selecting OS that defaults to Ubuntu so the computer wont boot without making a selection. (IE. GRUB_TIMEOUT=INFINITE) Is it just a simple case of leaving it blank or #out the line in /etc/default/grub ? I want it so my wife can choose OS easily on her newly Dual booting PC.

I would also like to know if updating Burg after this would keep the change - as the big graphics of the OS's are a little more noob friendly.

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2 Answers 2

up vote 15 down vote accepted

Change GRUB_TIMEOUT value from 10 to -1, save the file and then run sudo update-grub2. Reboot and now you have infinite time to choose the OS.

While this works in GRUB, it doesn't work with BURG, and you'll have to change GRUB_TIMEOUT value to some large number like 120 seconds to wait before booting into any OS and run sudo update-burg to reflect the changes. Also note that this change must be made to file /etc/default/burg as BURG doesn't consider options set in /etc/default/grub

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Excellent answer. Thank you very much. I set it to 600 seconds with Burg and it's awesome. –  Lasher May 12 '12 at 19:50

Setting timeout to -1 will make GRUB wait infinitely.

By that I mean that you will be required to manually select an entry and hit Enter before launching any OS.

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