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Lost Art of Computer Programming: Das U-Boot: The Universal Boot Loader

Aug 31, 2004, 07:00 (0 Talkback[s])

[ Thanks to Curt Brune for this link. ]

"Exciting new embedded Linux devices are appearing at an astonishing rate. From tiny 3 inch 'Gumstix' boards to PDAs and smart-phones embedded Linux is everywhere. Installing and booting Linux on these wildly varying boards is quite a chore. Without a good boot loader these machines are just complicated hunks of silicon with nothing to do. That's where Das U-Boot, a Free Software universal boot loader, steps in.

"A boot loader, sometimes referred to as a boot monitor, is a small piece of software that executes soon after powering up a computer. On your desktop Linux PC you may be familiar with lilo or grub, which resides on the master boot record (MBR) of your hard drive. After the PC BIOS performs various system initializations it executes the boot loader located in the MBR. The boot loader then passes system information to the kernel and then executes the kernel. For instance the boot loader tells the kernel which hard drive partition to mount as root..."

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