Update README.md

README.md

@@ -1,3 +1,105 @@
-# basekernel
 
-Basekernel for Edcucation
+
+
+# The Basekernel Operating System Kernel
+
+Simple Operating System for Education
+
+Original source: https://github.com/dthain/basekernel
+
+Basekernel is a simple operating system kernel for research, teaching, and fun.
+
+Basekernel is *not* a complete operating system, but it is a starting
+point for those who wish to study and develop new operating system code.
+If you want to build something *different* than Windows, Linux, or Multics,
+Basekernel may be a good place to try out your new ideas.
+
+Basekernel can boot an Intel PC-compatible virtual machine in 32-bit protected
+mode, with support for VESA framebuffer graphics, ATA hard disks, ATAPI optical
+devices, process management, memory protection, simple graphics, and basic filesystem.
+From there, it's your job to write user-level programs and expand the system.
+
+To be clear, this is raw low-level code, not a production system.
+If you want to hack code and learn about operating system, you will like Basekernel.
+If you are looking for a new OS to run on your laptop, then this is not what you want.
+
+This project is led by Prof. Douglas Thain at the University of Notre Dame.
+A variety of students have contributed to the code, including
+Jack Mazanec, Douglas Smith, Ethan Williams, Jon Westhoff, and Kevin Wern.
+
+To learn more, see the [Basekernel Wiki](https://github.com/dthain/basekernel/wiki).
+
+## Quick VM86
+
+<browser> ../../dist/webv86/web/vm86.html
+
+
+cd ../../dist/webv86/web/
+<browser> vm86.html
+
+
+VM86 Set-up is redirected to basekernel.iso in this folder.
+
+## Elf GCC Crosstools
+
+1. http://edu-9.de/uploads/software/gcc-elf-cross/i686-elf-tools-linux.zip
+2. http://edu-9.de/uploads/software/gcc-elf-cross/i686-elf-tools-windows.zip
+3. http://edu-9.de/uploads/software/gcc-elf-cross/make-3.81-bin.zip
+4. http://edu-9.de/uploads/software/gcc-elf-cross/make-3.81-dep.zip
+
+> Windows host (development) OS requires 2-4
+
+
+## Quick Start Instructions
+
+If you are building on a Linux-X86 machine
+and have the QEMU virtual machine installed:
+
+```
+git clone https://github.com/dthain/basekernel
+cd basekernel
+make
+qemu-system-i386 -cdrom basekernel.iso
+```
+
+And you should see something like this:
+
+<img src=screenshot.png align=center>
+
+After some initial boot messages, you will see the kernel shell prompt.
+This allows you to take some simple actions before running the first
+user level program.  To automatically boot the first available filesystem,
+whether on cdrom or harddisk, run <tt>automount</tt>:
+
+<pre>
+automount
+</pre>
+
+Then use the <tt>list</tt> command to examine the root directory:
+
+<pre>
+list /
+</pre>
+
+And use the <tt>run</tt> command to run a program.
+For example, <tt>/bin/manager.exe</tt> runs a simple
+four-pane window manager with several tasks in parallel.
+(Use TAB to switch focus between programs, and tilde
+to cancel out of the window manager.)
+
+<pre>
+run /bin/manager.exe
+</pre>
+
+<img src=screenshot-windows.png align=center>
+
+Press TAB to change the focus between windows,
+and you can interact with each process in turn.
+
+## Cross-Compiling Instructions
+
+If you are building on any other type of machine,
+you will probably need to build a cross-compiler
+using `build-cross-compiler.sh` and then edit
+`Makefile.config` to use the cross compiler binaries,
+then execute `make` to create `basekernel.iso`