[Level 2] How to update Ubuntu boot menu (grub).

If you want to modify grub menu of Ubuntu,
you have following steps to do:
1. Modify default grub configuration file.
# vi /etc/default/grub
2. Update grub configuration.
# update-grub
Generating grub.cfg ...
Found linux image: /boot/vmlinuz-2.6.38-12-generic
Found initrd image: /boot/initrd.img-2.6.38-12-generic
Found linux image: /boot/vmlinuz-2.6.38-8-generic
Found initrd image: /boot/initrd.img-2.6.38-8-generic
Found memtest86+ image: /boot/memtest86+.bin
Found Windows Recovery Environment (loader) on /dev/sda1
Found Windows 7 (loader) on /dev/sda2
done
#

More info. please refer to here.

Wish this helps.
regards,
Stanley Huang

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