Unfortunately, maintaining a multi-boot configuration ... can be a pain, especially if you later install an operating system which overwrites the GRUB boot loader you had in place (such as a version of Windows). If your boot loader is overwritten, you could be left with no choice but to boot the most recently installed OS.

This tutorial will explain how to restore Grub after installing Windows 7/Vista/Xp.If you are using dual boot PC with windows,Ubuntu for some reason you reinstall your windows now you may not see your grub 2 is loading because your windows installation might have been over written MBR (Master boot record).

LILO (Linux Loader) and GRUB (GRand Unified Bootloader) are both configured as a primary boot loader (installed on the MBR) or secondary boot loader (installed onto a bootable partition). Both work with supporting operating systems such as Linux, FreeBSD, Net BSD, and OpenBSD. They can work with unsupported operating system, such as Microsoft Windows XP, in the configuration file. Both allow users—root users—to boot into single-user-mode.

GRUB, the GRand Unified Bootloader, has been the default boot loader on virtually all Linux distributions since LILO (LInux LOader) lost its shine. LILO is still an option in only a handful of distributions (Mandriva is one), but on most, GRUB is the sole boot loader. GRUB’s menu has a very bland interface, and BURG is an attempt to prettify it, spice it up a bit.

This is the second article on dual-booting Windows 7 and Ubuntu 10.10 on a computer with one hard disk. The first, how to dual-boot Ubuntu 10.10 and Windows 7, showed how to accomplish the task with GRUB 2, the boot loader used by Ubuntu, installed on the Master Boot Record (MBR) of the hard disk. That is, GRUB is responsible for the dual-booting task.

I recently installed Windows 7 on my laptop which already had ubuntu remix installed in it.The problem i faced was, the GRUB was lost. But i had trouble getting your GRUB boot loader since the process of restoring GRUB has changed.Follow these instructions to restore your GRUB.

If you dual (or triple, or more) boot your machine, i.e. you have many different operating systems you choose between at startup, you might have to use your bootloader fairly frequently. GRUB is a very functional boot loader and can do the job in most cases. But its default text-based view is a little visually unattractive, is it not?

If you've been running Linux long enough to have upgraded your system more than once, you probably have several Linux kernels lurking around your system. If you discover that a certain application no longer works for you, you can go back to a previous kernel to try to run your program. GRUB, the boot loader found in most Linux distributions, lets you choose among operating systems and kernels installed on your box. Many people, however, fear that messing with GRUB may ruin their system, because of its many esoteric options, and configuration file text that often contains no help comments. QGRUBEditor can help you view and edit the GRUB boot loader from a graphical user interface.

The tools used to boot Linux are changing. Specifically, the Grand Unified Bootloader (GRUB) is now officially in maintenance mode only, and GRUB's developers have abandoned the original GRUB in favor of an entirely rewritten package, known as GRUB 2. Discover GRUB 2's new capabilities and how to use it.