How to Add Another Operating System to a Ubuntu GRUB Menu List

The Ubuntu Linux operating system, version 9.10 and above, uses the Grub2 boot loader and manager by default. This is an updated version of the previously used Grub boot loader. Grub2 does not use the "/boot/grub/menu.lst" file to list the operating systems and bootable kernels available. Instead, the "update-grub" script will search for and add any operating systems available to the Grub boot menu. The entries are found in the "/boot/grub/grub.cfg" file. It is not recommended to edit the "grub.cfg" file by hand.

Instructions

1. Log in to the Ubuntu operating system.

2. Click on the "Applications" menu.

3. Highlight the "Accessories" menu.

4. Click on the "Terminal" option to open a terminal window.

5. Type the command "sudo update-grub" to instruct Grub to search for any additional operating systems installed.

References

• Ubuntu Documentation: Grub2

Resources

• Ubuntu
• GNU Grub