sslug-teknik team mailing list archive

[Magnus Pedersen <tux@xxxxxxxxxxxxxxxxxx>]

System, Debian testing.

Jeg har en usbstick og en IRiver mp3 afspiller, begge er USB 2.0 
stumper og begge er Massstorage kompatible.

Når jeg skriver til usbsticken skriver jeg uden problemer med ca 
1MB/s men bår jeg skriver til mp3aspilleren kan jeg kun skrive med 
32 KB/s og den har 1½ GB hukommelse, så det tager en lille krig at 
fylde den med musik.

Er der nogle der har en ide til hvad jeg gør galt?

/Magnus

$ dmesg
<SNIP>
###Sætter mp3afspilleren til
usb 4-2.1: new high speed USB device using ehci_hcd and address 6
SCSI subsystem initialized
Initializing USB Mass Storage driver...
scsi0 : SCSI emulation for USB Mass Storage devices
usb-storage: device found at 6
usb-storage: waiting for device to settle before scanning
usbcore: registered new driver usb-storage
USB Mass Storage support registered.
  Vendor: CORNICE   Model: Inc. Storage      Rev: 041U
  Type:   Direct-Access                      ANSI SCSI revision: 00
usb-storage: device scan complete
SCSI device sda: 2858688 512-byte hdwr sectors (1464 MB)
sda: assuming drive cache: write through
SCSI device sda: 2858688 512-byte hdwr sectors (1464 MB)
sda: assuming drive cache: write through
 /dev/scsi/host0/bus0/target0/lun0: p1
Attached scsi disk sda at scsi0, channel 0, id 0, lun 0

##Her sætter jeg usbsticken i

usb 4-2.4: new high speed USB device using ehci_hcd and address 7
hub 4-2.4:1.0: USB hub found
hub 4-2.4:1.0: 1 port detected
usb 4-2.4.1: new high speed USB device using ehci_hcd and address 8
scsi1 : SCSI emulation for USB Mass Storage devices
usb-storage: device found at 8
usb-storage: waiting for device to settle before scanning
  Vendor: Corsair   Model: Flash Voyager     Rev: 1.00
  Type:   Direct-Access                      ANSI SCSI revision: 00
SCSI device sdb: 1015808 512-byte hdwr sectors (520 MB)
sdb: Write Protect is off
sdb: Mode Sense: 00 26 00 00
sdb: assuming drive cache: write through
SCSI device sdb: 1015808 512-byte hdwr sectors (520 MB)
sdb: Write Protect is off
sdb: Mode Sense: 00 26 00 00
sdb: assuming drive cache: write through
 /dev/scsi/host1/bus0/target0/lun0: p1
Attached scsi removable disk sdb at scsi1, channel 0, id 0, lun 0
usb-storage: device scan complete

$ cat /etc/mtab

<SNIP>

/dev/sda1 /mnt/usb/Inc.Storage vfat 
rw,nosuid,nodev,sync,noatime,umask=000 0 0
/dev/sdb1 /mnt/usb/FlashVoyager vfat 
rw,nosuid,nodev,sync,noatime,umask=000 0 0

Mit hotplugscript, der forøvrigt bliver kørt af udev:

#!/bin/sh
#
# Automount hotplugged block devices, by Wout Mertens 
(wmertens@xxxxxxxxxx)
#
# Linux v2.6 version
# This script is released under version 2 of the GPL.

# To install this, either make it /sbin/hotplug, or, if you have
# linux-hotplug installed, make it 
/etc/hotplug.d/block/automount.hotplug .
# It needs to be executable. I tested it with busybox's ash.
#
# The devices will be mounted for the console user if applicable.
#
# To work, this needs:
# - v2.6 kernel support:
# - hotplugging, /proc mounted, /sys mounted
# - filesystems that will be mounted, like vfat
# - sh, echo, sed, stat or ls, getent or grep passwd,
# mount, umount, mkdir, rmdir. logger is used if there.
#
# Possible improvements:
# - Call a notifier script when mounting/unmounting. This could 
create the
# desktop entry by itself.
# - Edit fstab instead, and give the "user" option. This depends more on
# the user/desktop knowing what he/it is doing.

# Changelog:
#
# - 2005-03-26 Mark Burazin (mark@xxxxxxxxxxx)
# - Multiple partitions are now correctly created as separate icons
#
# - 2005-03-20 Mark Burazin (mark@xxxxxxxxxxx)
# - Creation of desktop entry under /home/(current user)/Desktop
# - use supermount and subfs successfuly.
# - Solve bug where sometimes the icons were not deleted (problem 
was in spaces
# which were in some names eg. "JUMPDRIVE " -> "JUMPDRIVE")
# - Another issue of the delete bug is when the usb is quicker and 
we don't
# know the device name. There is a solution, but You must uncomment 
the "usbbug" line
# - allow a definition for using diffrent icons for diffrent drives 
check the
# PRODUCTS_* variables.

# Debugging
# set -xv
# exec > /tmp/hotplug.$$ 2>&1

# Configuration
ICON_PATH=/usr/share/icons/crystalsvg/scalable/devices
PATH="/bin:/sbin:/usr/bin:/usr/sbin"
export PATH

# We only handle block device messages
[ "$1" != "block" ] && exit 0

# Proclaim stuff to the world
mesg () {
logger -t $0 "$*"
}

# Is path already mounted?
is_path_mounted () {
while read dev path rest
do
if [ "$path" = "$1" ]
then
return 0
fi
done < /proc/self/mounts
return 1
}

# Get mounted path for a device
get_mounted_path () {
while read dev path rest
do
if [ "$dev" = "$1" ]
then
echo "$path"
return 0
fi
done < /proc/self/mounts
return 1
}
get_product_info () {
# Here You can setup which are the default
# icons
ICON_HDD=hdd_mount.svgz
ICON_USBPENDRIVE=usbpendrive_mount.svgz
ICON_DEFAULT=$ICON_USBPENDRIVE
# And which icons to assign to which product id's, joust remove
# spaces from the name eg. "SOME USB DRIVE" -> "SOMEUSBDRIVE"
# and leave it surrounded by ":"
PRODUCTS_USBPENDRIVE=":JUMPDRIVE:"
PRODUCTS_HDD=":B200P0:24320:USBMSReader:USBCFReader:"
# Find the name
PRODUCT=`cat /sys/$1/$2/device/model`
if [ -z "$PRODUCT" ]
then
PRODUCT=generic
else
PRODUCT=`echo $PRODUCT | sed 's/ //g'`
fi
# Find the vendor
VENDOR=`cat /sys/$1/$2/device/vendor`
if [ -z "$VENDOR" ]
then
VENDOR=vendor
else
VENDOR=`echo $VENDOR | sed 's/ //g'`
VENDOR=`echo $VENDOR | sed 's/-//g'`
fi

# Find out who we are going to mount it as
#CONSOLEUSER=`stat -c%U /dev/console 2>/dev/null`
#Mount as a specific user instead as root
CONSOLEUSER=magnus
if [ -z "$CONSOLEUSER" ]
then
set `ls -l /dev/console`
CONSOLEUSER=$3
fi
[ -n "$CONSOLEUSER" ] || CONSOLEUSER=root
PASSWD=`getent passwd $CONSOLEUSER 2>/dev/null`
if [ -z "$PASSWD" ]
then
PASSWD=`grep "$CONSOLEUSER" /etc/passwd||grep root /etc/passwd`
fi
if [ -z "$PASSWD" ]
then
mesg "Could not get password entry for $CONSOLEUSER"
exit 1
fi
set `echo $PASSWD | sed 's/:/ /g'`
if [ $# -lt 4 ]
then
mesg "Bad password entry for $CONSOLEUSER"
exit 1
fi
USERID=$3
USERGID=$4


# if we have a quick usb unplug (can't determine product)
# then we need to find the icons by device and delete them.
if [ "$ACTION" = "remove" && $PRODUCT = "generic" ]
then
set `grep -l -e"$DEVICE" /home/$CONSOLEUSER/Desktop/*.desktop`
if [ $# -lt 1 ]
then
# this solves the usbbug, uncomment to allow this feature, but be 
careful
mesg "Deleting stale icon...$#"
rm /home/$CONSOLEUSER/Desktop/$#.desktop
fi
fi

#uncomment this so You can see the name for PRODUCTS_* variables
#mesg "Searching for product: ->$PRODUCT<-"

# Find the icon type
if [ ! -z `echo $PRODUCTS_USBPENDRIVE | grep -e:$PRODUCT:` ]
then
ICON_USE=$ICON_USBPENDRIVE
elif [ ! -z `echo $PRODUCTS_HDD | grep -e:$PRODUCT:` ]
then
ICON_USE=$ICON_HDD
else
ICON_USE=$ICON_DEFAULT
fi


}

# Wait for a file to appear
wait_for () {
local count=0
while [ $count -lt 10 ] && [ ! -e "$1" ]
do
sleep 1
done
[ $count -eq 10 ] && return 1
return 0
}

# Remove strange characters from a filename
clean_filename () {
# Note the lack of quotes around $1, this strips off spaces.
echo $1 | sed 's/[ /?*\"<>]/_/g'
}

# Figure out the device to mount
set `echo $DEVPATH | sed 's/\// /g'`
[ $# -ne 3 ] && exit 0
DEVICE=/dev/$3

if [ "$ACTION" = "remove" ]
then
# Is it ours?
dir=`get_mounted_path $DEVICE`
echo "$dir" | grep -q ^/mnt/usb || exit 0

get_product_info $1 $2 $ACTION $DEVICE

# Unmount it
[ -d "$dir" ] || exit 1
umount -lf "$dir"
rmdir "$dir"
# remove the desktop icon
mesg Unmounting $DEVICE, $dir $PRODUCT for user $CONSOLEUSER
SDEV=`echo $DEVICE | sed 's/\///g'`
rm "/home/$CONSOLEUSER/Desktop/$SDEV.desktop"
exit 1
fi

if [ "$ACTION" = "add" ]
then
# Is it a usb device? Exit if not.
ls -l /sys/$1/$2/device | sed 's/^.* -> //g' | grep -q usb || exit 0

# Mount it

# Make sure we have support for vfat
modprobe -q vfat

wait_for /sys/$1/$2/device/vendor || exit 1


get_product_info $1 $2 $ACTION

# Find out where we mount it
MOUNTPATH=/mnt/usb/`clean_filename "$PRODUCT"`
if is_path_mounted "$MOUNTPATH"
then
count=1
while is_path_mounted "${MOUNTPATH}_${count}"
do
count=$(( $count + 1 ))
done
MOUNTPATH="${MOUNTPATH}_${count}"
PRODUCT="${PRODUCT}_${count}"
fi
# Make sure it's a directory
if [ -e "$MOUNTPATH" ]
then
if [ ! -d "$MOUNTPATH" ]
then
mesg "$MOUNTPATH exists but is not a directory"
exit 1
fi
else
mkdir -p "$MOUNTPATH"
if [ $? -ne 0 ]
then
mesg "Could not create mountpoint $MOUNTPATH"
exit 1
fi
fi

# These options should prevent abuse and make it writeable for the
# console user.
if grep -q subfs /proc/filesystems
then
MOUNTOPTS="-s -t subfs -o 
fs=vfat:ext3:ext2:reiserfs,noatime,nosuid,umask=077,uid=$USERID,gid=$USERGID"
elif grep -q supermount /proc/filesystems
then
MOUNTOPTS="-s -t supermount 
-onoatime,nosuid,umask=077,uid=$USERID,gid=$USERGID"
else
#MOUNTOPTS="-s -onoatime,sync,dirsync,nosuid,umask=077,uid=$3,gid=$4"
MOUNTOPTS="-s -onoatime,sync,user,users,exec,umask=000"
#MOUNTOPTS="-s -onoatime,sync,user,exec,umask=0000"
fi
mesg Mounting $DEVICE on $MOUNTPATH, options $MOUNTOPTS $ICON_USE

mount $MOUNTOPTS $DEVICE $MOUNTPATH

# Everything was mounted fine, create a Desktop icon
SDEV=`echo $DEVICE | sed 's/\///g'`
OUTPUTFILE="/home/$CONSOLEUSER/Desktop/$SDEV.desktop"
echo "[Desktop Entry]" > $OUTPUTFILE
echo "Version=1.0" >> $OUTPUTFILE
echo "Name=$VENDOR $PRODUCT" >> $OUTPUTFILE
echo "Encoding=UTF-8" >> $OUTPUTFILE
echo "Type=Link" >> $OUTPUTFILE
echo "URL=$MOUNTPATH" >> $OUTPUTFILE
echo "Dev=$DEVICE" >> $OUTPUTFILE
echo "Icon=$ICON_PATH/$ICON_USE" >> $OUTPUTFILE

chmod 777 $OUTPUTFILE
chown $CONSOLEUSER $OUTPUTFILE
chgrp users $OUTPUTFILE
fi


--
"Ford, you're turning into a penguin. Stop it."

Douglas N. Adams (1952-2001)