Understanding the Proc File System The proc filesystem is a virtual filesystem which provides a lot of infromation about hardware and kernel internal data structures.
Interview with Jeff Dike Jeff Dike is the creator and maintainer of User Mode Linux, a very interesting new feature of the 2.6 Linux kernel. This article will give some insight into UML and the people behind it.
Fail Safe Port Allocation for Linux Device Drivers Writing a device driver is a challenging and an adventurous job. Once the device is registered in the driver's init_module routine, the resources for the device should be allocated. One of the main resources for the device is I/O port. The dynamically linked drivers, the developer should be careful to allocate unused range of port addresses for their device.
Compile your own Linux kernel This a really comprehensive article that teaches you how to download , configure, compile and install your own kernel.