Introduction To U-Boot

The U-Boot utility is a multi-platform, open-source, universal boot-loader with comprehensive support for loading and managing boot images, such as the Linux kernel. It supports the following features:

• Network download: TFTP, BOOTP, DHCP, NFS
• Serial download: s-record, binary (via Kermit)
• Flash management: copy, erase, protect, cramfs, jffs2
• Flash Types: CFI NOR-Flash, NAND-Flash
• Memory utilities: copy, dump. crc, check, mtest
• Mass Storage Devices: IDE, SATA, USB
• Boot from disk: raw block, ext2, fat, reiserfs
• Interactive shell: choice of simple or "busybox" shell with many scripting features.

This book is a quick guide to getting started. For full details of U-Boot's features please refer to the README file and visit the official website.