udev is a daemon which dynamically creates and removes device
nodes from /dev/, handles hotplug events and loads drivers at
boot time. It replaces the hotplug package and requires a kernel
not older than 2.6.12.
Install udev in Debian
#apt-get install udev
After installing this you need to reboot your machine.
Upgrade from devfs to udev on Debian
Some of you used devfs under Woody, or under their previous
Sarge install. When going kernel 2.6, it may be useful to revert
or upgrade to udev instead. The problem is that their
nomenclatura is different, so your system may be rendered
unbootable. Let's see what to care about to switch from devfs to
First, the bootloader will no longer need the devfs=mount
parameter on the kernel command-line. So, wheter you use GRUB or
LILO, remove or comment the reference to devfs=mount.
Second, check in your /etc/fstab that you have nothing in
devfs-nomenclatura, like /dev/ide/host0/bus0/target0/lun0/part3,
but everything in the standard nomenclatura like /dev/hda3.
Third, install the udev package, it will probably bring some
dependencies too. That's ok.
Last, check the links in /etc/udev/rules.d/. There are probably
two links to the upper directory: compat-full.rules and
devfs.rules. Remove them and create a new link to udev.rules and
to cd-aliases.rules like this