+---------------------------------------------+
  |  A Flowchart for the boot sequence of JayOS |
  +---------------------------------------------+
            |
  +--------------------+
  |  Power supply ON;  |
  |   PC BIOS starts   |
  +--------------------+
            |
  +-----------------------------------------------------+
  | BIOS looks for bootable media, either hard drive,   |
  | CDROM, or external USB storage, then reads the boot |
  | loader written on what passes for the MBR on drive. |
  +-----------------------------------------------------+
            |
  +--------------------------------------------+
  | The boot loader loads the kernel (vmlinuz) |
  | and an initial ramdisk (initrd.gz) and     |
  | then passes the reins to the kernel.       |
  +--------------------------------------------+
            |
  +------------------------------------------+
  | The kernel expands initrd.gz and mounts  |
  | it as a temporary root file system.      |
  +------------------------------------------+
            |
  +----------------------------------------------------------------------+
  | It then executes /linuxrc in the initrd. /linuxrc parses a few       |
  | command line parameters, then determines from which device the root  |
  | filesystem should be loaded. The device defaults to the same one the |
  | kernel was loaded from. /linuxrc copies the real root filesystem     |
  | from the mounted media into /dev/ram1.                               |
  +----------------------------------------------------------------------+
            |
  +------------------------------------------+
  | The kernel mounts /dev/ram1 and executes |
  | /sbin/init. The initial ramdisk is moved |
  | to /initrd where it can later be         |
  | unmounted and its memory freed.          |
  +------------------------------------------+
            |
  +------------------------------------------------------+ 
  | Init executes /etc/rc.d/rc.sysinit, then proceeds to |
  | /etc/rc.d/rcsysinit.d and /etc/rc.d/rc3.d. There it  |
  | runs (in order) all scripts beginning with S, and    |
  | passes them the "start" argument.                    |
  +------------------------------------------------------+
            |
  +----------------------------------------------------------------+
  | The shell scripts perform the following functions:             |
  |                                                                |
  | * Mounts /usr filesystem        +==> * Loads root's .xinitrc   |
  | * Probes hardware               |                              |
  | * Configures X11 video          |    * Launches graphical      |
  | * Turns on swap                 |       environment and        |
  | * Configures networking         |       window manager         |
  | * Initializes audio, printer,   |                              |
  |    samba, ssh, & font services  |                              |
  |                               ==>                              |
  |                                                                |
  +----------------------------------------------------------------+