Learn Linux 101: Install a boot manager | Search for a title, author or keyword | ||||||||
Learn Linux 101: Install a boot manager Introducing GRUB, GRUB 2, and LILO, By Ian Shields. GRUB, or the GRand Unified Boot loader, was for a long time one of the most common Linux boot loaders. You can install GRUB into the MBR of your bootable hard drive or into the partition boot record of a partition. You can also install it on removable devices such as floppy disks, CDs, or USB keys. It is a good idea to practice on a floppy disk or USB key if you are not already familiar with GRUB. The examples in this tutorial show you how. The standard hard drive MBR used by MS DOS, PC DOS, and Windows operating systems checks the partition table to find a primary partition on the boot drive that is marked as active, loads the first sector from that partition, and passes control to the beginning of the loaded code. This new piece of code is also known as the partition boot record. The partition boot record is actually another stage 1 boot loader, but this one has just enough intelligence to load a set of blocks from the partition. The code in this new set of blocks is called the stage 2 boot loader. As used by MS-DOS and PC-DOS, the stage 2 loader proceeds directly to load the rest of operating system. A program that can reside on an operating system partition and is invoked either by the partition boot record of an active partition or by the master boot record. The original GRUB has now become GRUB Legacy, and GRUB 2 is being developed under the auspices of the Free Software Foundation. GRUB Legacy is no longer in active development.
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