LinuxQuestions.org - USB wireless stick shutdown problem

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USB wireless stick shutdown problem

After two days of hard work, I managed to get my new Trendnet TEW-424UB USB wireless card working on my slack 11 machine.
I get the ndiswrapper slack pkg from:
http://www.slackware.com/~alien/slac...pper/pkg/11.0/

I have a single related problem:
The shutdown freezes after
'Unmounting remote file system'.
I've tried to put "ifconfig wlan0 down" in the shutdown script, but the same...
Any suggestions, please?

Tks.

Dan

please post more info .... maybe all of what is displayed when you shutdown , any errors in dmesg ... etc. etc.

no errors in dmesg... only this freaze after
"Unmounting remote file systems"
The usb light is blinking as it is still "on"
The computer needs to be shut down manualy from powe buton...

Tks.

Try first:

1) Shutting down the connection (as you said you tried above)
2) Unmounting it manually (if necessary)
3) Removing the card

Before shutdown.

H_TeXMex_H,

I don't know how to unmount wlan usb stick :-( since it has no entry in fstab...
Tks.

Then just unplug it, then shutdown.

Maybe using rmmod would kill the thing? Which script are you running that in?

I just put
modprobe -r ndiswrapper
in /etc/rc.d/rc.6 and voila!

Quote:

Originally Posted by dan_slack

similair problem only mine doesn't freeze, it just hangs for about 60 seconds and then continues with the normal shutdown...

still begs the question, whats causing it to pause. something that only started after i got my own wlan0 working using dhcpcd (3.0.5). had to spend the week upgrading my system to 2.6.21.3 and fiddle with the kernel to get everything "else" working, but other than this 60 pause, seems to be well worth it. i love my upgraded slackware 10.1 with the latest 2.6 kernel albeit the ati 9600 radeon is still not doing 10,000 fps (no complaints, i am happy that it is at least working at 150 fps)

wouldn't mind knowing how to shutdown the wlan0 (that's if it is what is causing the problem),

i cant seem to find the proper way to get dhcpcd to shutdown upon command

any help would be greatly appreciated

thanks

- perry

Hmmm ... well to take down that interface, just do:

Code:

ifconfig wlan0 down

Not sure if that will help tho.

EDIT: oops missed that quote above where it tells you this.

What's the output of 'lsmod' ?

This "seemed" to help!

Inside /etc/rc.d/rc.M:

Code:

# Initialize the networking hardware.  If your network driver is a module

# and you haven't loaded it manually, this will be deferred until after

# the hotplug system loads the module below.

# Starting iptables firewall

if [ -x /etc/rc.d/rc.iptables ]; then

  /etc/rc.d/rc.iptables start

fi

if [ -x /etc/rc.d/rc.inet1 ]; then

  . /etc/rc.d/rc.inet1

fi

if [ -x /etc/rc.d/rc.wlan0 ]; then

  /etc/rc.d/rc.wlan0 start

fi

and then in /etc/rc.d/rc.6:

Code:

# Stopping wlan0 

if [ -x /etc/rc.d/rc.wlan0 ]; then

  /etc/rc.d/rc.wlan0 stop

fi 

# Stopping iptables firewall

if [ -x /etc/rc.d/rc.iptables ]; then

  /etc/rc.d/rc.iptables stop

fi 

# Shut down PCMCIA devices:

if [ -x /etc/rc.d/rc.pcmcia ] ; then

  . /etc/rc.d/rc.pcmcia stop

  # The cards might need a little extra time here to initialize.

  sleep 5

fi

Code:

#!/bin/sh



if [ "$1" == "start" ]; then

  /sbin/dhcpcd wlan0 &

  /etc/rc.d/rc.wireless wlan0

fi



if [ "$1" == "stop" ]; then

  /sbin/dhcpcd  -k

fi

not "perfect" but much speedier!

- perry

ps.
incidentally, is your wireless modem a distance from your monitor & speakers... i was subsisting on 9-11 Mbs till i gave it longer usb cable and at least 2-3 feet away from monitor/speaker, now i am enjoying 24-36 Mbs

Something else to speed up bootup:

Make a couple of changes to /etc/rc.d/rc.M
from:

Code:

# Update all the shared library links:

if [ -x /sbin/ldconfig ]; then

  echo "Updating shared library links:  /sbin/ldconfig"

  /sbin/ldconfig 

fi



# Update the X font indexes:

if [ -x /usr/X11R6/bin/fc-cache ]; then

  echo "Updating X font indexes:  /usr/X11R6/bin/fc-cache"

  /usr/X11R6/bin/fc-cache 

fi

to:

Code:

# Update all the shared library links:

if [ -x /sbin/ldconfig ]; then

  echo "Updating shared library links:  /sbin/ldconfig"

  /sbin/ldconfig &

fi



# Update the X font indexes:

if [ -x /usr/X11R6/bin/fc-cache ]; then

  echo "Updating X font indexes:  /usr/X11R6/bin/fc-cache"

  /usr/X11R6/bin/fc-cache &

fi

i see no reason to wait for static libraries and the font cache updates to have to pause the bootup process

- perry