Writting a Boot Sector - A brief explanation of the objective of a boot sector, followed by the source for an example sector. - http://www.nondot.org/sabre/os/files/Booting/PolyOS.html
Daniel's NASM Bootstrap Tutorial - A guide for those who want to create their own bootstraps, by Daniel Marjamäki. - http://www.nondot.org/sabre/os/files/Booting/nasmBoot.txt
Master Boot Record Tut - Part of the "How it works" series, which includes a disassembly of the MBR produced by the FDISK program. - http://www.nondot.org/sabre/os/files/Booting/mbr.txt
Single-User Booting Under Linux - Linux Gazette article about Single User booting under Linux. - http://linuxgazette.net/issue19/booting.html
Gujin boot/system loader - Starts a PC from hard disk, CD-ROM, USB key, or floppy, and automatically detects operating systems and Linux kernels. - http://gujin.org/
Lilo mini-Howto - Lilo mini-Howto for the boot loader software. - http://en.tldp.org/HOWTO/LILO.html
MILO: Alpha Miniloader - MILO is the bootloader for Linux on the Alpha. Sources for setting it up and using it. - http://milo.core-systems.de/
tcron : ATX power crond - Tcron integrates 'cron' with ATX power-up capability. It can invoke multiple cron jobs with power-up/shutdown a day. - http://tcron.sourceforge.net/
Zaitcev's Linux Page - Proll open source firmware replacement for Sun JavaStations to boot Linux (source, binaries), issues, swap over network. Also, other notes, Infiniband, X11 code, other patches, Barbie Camera toy code and links. - http://people.redhat.com/zaitcev/linux/
The Boot Process - Selection of articles about booting x86 processors. - http://www.nondot.org/~sabre/os/articles/TheBootProcess/
alios - Linux boot loader - The alios boot loader for Linux is a small assembler loader code designed to load a Linux kernel and RAM disk image from ROM after initialising the most basic hardware features. The current version is configured to initialise the registers of an AMD Elan - http://www.telos.de/linux/alios/default_e.htm
TIARA (utcboot) - Talkware TIARA, an Openbios/GRUB/PFORTH composite, BIOS replacement. Boots an unmodifed linux kernel from an IDE drive or ethernet, using only 128kb of flash. Works with - http://sourceforge.net/projects/utcboot/
Linux above 1024 cylinders and LILO - Linux above 1024 cylinders errors with LILO from the SuSE Support Database. - http://sdb.suse.de/sdb/en/html/1024_Zylinder.html