All the newbies faces problem when dealing with the Bootloader of linux operating system, basically the ubuntu enviournment. It happens sometimes that accidently GRUB is deleted while doing some troubleshooting in Dual Boot enviournment. So before going to the scenario where we have to reinstall GRUB lets find out what actually is this GRUB and its surrounding fellas:

GRUB : GRand Unified Bootloader

As formally stated by GNU “Briefly, a boot loader is the first software program that runs when a computer starts. It is responsible for loading and transferring control to the operating system kernel software (such as  Linux). The kernel, in turn, initializes the rest of the operating system (e.g. GNU).”

In the Dual boot enviournment where lets say you have Windows and Ubuntu,GRUB  gives you a interface having all  installed Operating Systems .There  you can choose any one OS to boot .

Till ubuntu 9.04 ubuntu uses GRUB. After that configuration wise there were change made which results in GRUB 2.

GRUB 2: GRand Unified Bootloader 2

The idea of GRUB 2 was developing a new GRUB from the scratch with new features as per the user ease (configurational and structural). The file storage structure are all different from GRUB. So all the data or troubleshooting available on net regarding GRUB will probably will not work with GRUB 2.

Some feature that I find new other than structural  include advanced graphical interfaces and scripting addition. The helpful feature to boot from hard disk having Live CD ISOs. It also support other architectures such as PowerPC.

BURG : Brand-new Universal loadeR from GRUB.

As they SAY “burg is a brand-new boot loader based on GRUB. It uses a new object format which allows it to be built in a wider range of OS, including Linux/Windows/OSX/FreeBSD, etc. It also has a highly configurable menu system which works in both text and graphic mode. Additional features like stream support and multiple input/output device are also planned.”

BRUG reverse of GRUB .Nice. As the interface is graphically more advanced. Even you can customise the interface.

You can install BURG : https://help.ubuntu.com/community/Burg.

Soon i’ll post the working example of installing BURG with snapshots.

For online manual : http://www.gnu.org/software/grub/manual/legacy/grub.html

For offline(Command Shell):  Type “info grub” (without quotes obviously :)) in Command Shell(Terminal).

Images Source : Google images