Building the kernel
  Get the source
  Configure it.
    Variant on configure; make; make install
      allyesconfig, allnoconfig, defconfig, menuconfig, oldconfig.
    Getting previous kernel's config (/proc/config.gz)
  Cross compiling.
  Building out of tree
  User Mode Linux
  QEMU

Compiler
  gcc http://gcc.gnu.org/onlinedocs/
  icc http://www.intel.com/cd/software/products/asmo-na/eng/compilers/277618.htm
  tcc http://fabrice.bellard.free.fr/tcc/tccboot.html

Running "hello world" init.
  initramfs
  finding and mounting /

Coverage
  Power on to C entry point.  (x86, other arches?)
  C through launching init.
  Where to find the major subsystems
    scheduler
    vfs
    modules
      block/char device
      filesystem
      network
    Talking to userspace
      exec
        a.out, elf, #!, flat, misc
      syscalls
      ioctls
      device nodes
      synthetic filesystems
        /proc, /sys, shmfs, usbfs, devpts...

  A working Linux system
    Kernel, of course.
    root filesystem
      [initramfs, switch_root, pivot_root, /dev/console]
    init program
    C library
      dynamic loader
    fhs directories
      /dev

  Hardware families Linux runs on
    x86, x86-64
    powerpc
    arm
    mips
    sparc
    sh
    68k/coldfire

  Development
    CATB
    http://vger.kernel.org/vger-lists.html
    http://www.tux.org/lkml/
    http://www.kernel.org/faq
      http://www.kernel.org/kdist/rss.xml
    git/mercurial
    Documentation/{CodingStyle,SubmitChecklist}
    The four layer (developer, maintainer, lieutenant, linus) model.