Udev creates and removes device nodes in /dev, based on events the kernel sends out on device discovery or removal. In other words, Udev is the system that maps hardware devices to files you can interact with in the /dev directory. Udev runs in user space and creates points in /dev when the kernel detects and recognizes new hardware as it’s attached. It’s only been around since 2003/2004. All modern distributions use udev instead of the now depreciated hotplug.

U.S. District Judge William Alsup banned Psystar from selling Apple compatible hardware. On Psystar’s website, all of the products including Mac, Windows, and Linux products are listed as “Out of stock” except for Rebel EFI. Apple and Psystar filed to protect materials considered sensitive before going to court almost a year ago, so this injunction has been in the works for some time.

If you have two antennae, replace one with a direction antenna. Leaving the other as a omni-directional pole should give you a good area of coverage while the directional antenna serves to extend your wifi range to needed areas such as your backyard or that room down the hall and around the corner. If you only have one antenna, crack open the plastic casing on your router and look for a little socket for a second antenna. It’s cheaper for manufacturers to produce one hardware design and just downgrade the hardware to make more than one model than it is to have multiple, completely different designs.