1. UDEV

• 1.1. Introduction

• 1.2. Requirements

• 1.3. Installation

• 1.4. Configuration

• 1.5. Device configuration

2. DEVFS

• 2.1. What it was?

1.1. Introduction

UDEV seems to replace DEVFS. Actualy, DEVFS is not really supported anymore.

1.2. Requirements

Kernel 2.6 with udev support.

1.3. Installation

Just call

  apt-get install udev gnome-volume-manager

1.4. Configuration

Add sysfs in fstab

  none /sys sysfs defaults 0 0

and mount it

  mount /sys

1.5. Device configuration

Each device seems to be identified by a model and vendor. Here how to find out these values.

Plug in your USB device and get the device name:

  tail -n 20 /var/log/message

You should find sda or sdb or something like this.

In the next steps, replace sda with what you have found before.

Call

  udevinfo -q path -n /dev/sda

  udevinfo -a -p /sys/block/sda | grep BUS

  udevinfo -a -p /sys/block/sda | grep model

  udevinfo -a -p /sys/block/sda | grep vendor

You should find something like:

  BUS="scsi"

  SYSFS{model}="..."

  SYSFS{vendor}="Apacer  "

Add and entry in /etc/udev/udev.rules:

  BUS="scsi", SYSFS{vendor}="Apacer  ", NAME="apacer%n", SYMLINK="%k"

Create directory for script to be called (replace apacer with your vendor name)

  mkdir /etc/dev.d/apacer-1

and copy the following script in /etc/dev.d/apacer-1/mount

  #!/bin/sh

  if [ "$ACTION" == "add" ]

  then

    USER=`ps -elf | grep x-session-manager | cut -d " " -f 3 | head -n 1`

    su -c "mount /media/palmint-1" $USER

  fi

Create mountpoint:

    mkdir /media/apacer-1

add following line in your /etc/fstab:

  /dev/apacer-1   /media/apacer-1    auto    user,noauto,noatime,sync,defaults

Hal-volume-manager can show a lot informations about your hardware, but I couldn't find a package providing it.

2.1. What it was?

DEVFS is the old implementation of the dynamic device allocation. It has been replaced by UDEV.