Hey,

my question is: Is it possible to mount a usbstick automatic to some directory?

I want to just plug in a usbstick an have it immediately available as a samba-share, without typing "mount" in the console.

Andy ideas?
In "/etc/hotplug.d/usb#" are some interesting scripts. Is it possible to tweak something here?

*thetruelighthouse

Found a solution:

I used parts of this idea: https://dev.openwrt.org/ticket/3432

Edit the file /etc/hotplug.d/usb/10-usb-storage like this:

#!/bin/sh

# Copyright (C) 2006 OpenWrt.org
case "$ACTION" in
    add)
        [ -n "${INTERFACE}" ] &&
        [ "$(expr substr ${INTERFACE} 1 2)" == "8/" ]  && {
            /sbin/usb-storage add&
        }
        ;;
    remove)
        [ -n "${INTERFACE}" ] &&
                [ "$(expr substr ${INTERFACE} 1 2)" == "8/" ]  && {
                        /sbin/usb-storage remove&
                }
        ;;
    *)
        logger "unknown action: $ACTION"
        ;;
esac

Edit the file /sbin/usb-storage like this:

#!/bin/sh

tstamp=$(date +%s)

case "$1" in
    add)
        echo "f" > /proc/diag/led/power
        parts=$(ls /dev/scsi/host*/bus0/target0/lun0/part*)
        for part in $parts; do
            logger "Checking partition $part"
            if [ ! -z "$(mount | grep $part)" ]; then
                logger "$part already mounted... aborting"
                continue
            fi
            host=$(echo $part | sed -e "s/.*host\(.\).*/\1/")
            spart=$(basename $part)
            mp=${spart}-${host}
            logger "Trying to mount $spart on host $host"
            if [ ! -d /mnt/$mp ]; then
                logger "Creating mountpoint /mnt/$mp"
                mkdir /mnt/$mp
            fi
            mount -o sync $part /mnt/$mp && logger "$part mounted as /mnt/$mp" || logger "failed to mount $part"
            for handler in /etc/usb-handlers.d/*; do
                if [ -x $handler ] ; then
                    logger "Running add handler: $handler"
                    $handler add /mnt/$spart
                fi
            done
        done
        echo "1" > /proc/diag/led/power
        ;;
    remove)
        for handler in /etc/usb-handlers.d/*; do
            logger "$handler"
            if [ -x $handler ] ; then
                logger "Running remove handler: $handler"
                $handler remove /mnt/$spart
            fi
        done    
        # The system won't remove the /dev nodes until the device is unmounted
        # dd 1 block and check if it succeeds
        mounts=$(mount | grep "/dev/scsi/host" | cut -d " " -f 1)
        logger "Unmounting ro: $mounts"
        for mnt in $mounts; do
            logger "Checking $mnt"
            dd if=$mnt of=/dev/null bs=1 count=1 > /dev/null; ret=$?
            if [ $ret -gt 0 ]; then
                logger "dd failed on $mnt, trying to unmount"
                spart=$(mount | grep $mnt | cut -d ' ' -f 3)
                umount "$spart" && \
                logger "$mnt unmounted" && \
                logger "remove $spart dir from /mnt/" && \
                rm -rf $spart || \
                logger "Could not umount $mnt"
            fi
        done
        echo "0" > /proc/diag/led/power
        ;;
    *)
        logger "unknown"
esac

Now every time you plug in an USB-Stick oder USB-HD there will be created a mount-point in /mnt/.
After you unplug the device it will try to unmount it and removes the mount-folder in /mnt/.

I hope this helps someone!
Have fun!

thetruelighthouse, your script is greeeat for me! I will try it later..
thanks..

but I got a question, what is the /etc/usb-handlers.d/* mean?
I do not have this folder on my wrt..

(Last edited by doggie on 3 Jul 2008, 10:42)

doggie, good question!

I didn't care...
I never got a logmessage like "Running add handler:..."

I you look here: https://dev.openwrt.org/ticket/3432

Or look here: http://wiki.openwrt.org/UsbAudioHowto2 at 1.4 HOWTO
"/etc/usb-handlers.d/" is also mentioned.

looks like is is an self-written handler...
it tries to start a script "add" and "remove"
I guess on his machine this scripts contain some commands to control mpc...

Hi thetruelighthouse,

thanks for your scripts.
This is exactly what I was looking for.

Unfortunately, they do not work as I would expect.

The output of "mount" of my WL500gx is:

However if I insert a usb stick, it recognizes it, but does not mount it automatically.
Output of "fdisk -l":

The output put "mount" is still identical. I would expect to find a new entry in the output of "mount". Also it appears the script "/sbin/usb-storage" creates a new subdirectory in /mnt, but I can't find anything new in there either.

Which file access permissions are required for "/sbin/usb-storage" and "/etc/hotplug.d/usb/10-usb-storage"?

Do I need to register / enable it like a service in "/etc/init.d" somewhere?

What might have gone wrong? Any help is greatly appreciated.

Thanks in advance,

slowjoe

Perhaps I should mention that I use Kamikaze 7.09. Did not notice that this thread is in the WhiteRussian section of this forum. Found it when using Google...

- slowjoe

hey slowjoe,

the files "/sbin/usb-storage" and "/etc/hotplug.d/usb/10-usb-storage" are marked as executable on my WL-500G Premium. The user is root.
I'm using KAMIKAZE (7.09) on my box as well... (probably a wrong forum section)

Check the permissions for your "/mnt/"-Folder.
Try to debug the script. It drops some useful information to the log. (try "logread -r" when you plug your usb-device.)

The script will only mount USB-devices with an USB-ID starting with "8/"...

The file "/etc/hotplug.d/usb/10-usb-storage" will be executed as soon as you plug in a usb-device.
Add a line like " logger "my test: $ACTION" " and you will see if the script is called successfully...

thetruelighthouse

Thanks for your update.
Since I modified the file permissions the script works well!

This script is a great relief! Thank you again!