Ubuntu 10.10: Change grub menu timeout

Default grub menu timeout is 10 seconds. To change it just edit the grub filesudo vim /etc/default/grub and change GRUB_TIMEOUT value from 10 to e.g. 2. Then update grubsudo update-grubAfter the restart the time before boot your default operating system be 2 seconds.

Alternatively, one can install GUI grub editor called StartUp-Manager sudo apt-get install startupmanager