5.0.1 usb-storage problem.

Hi,

I am using a HD install of 5.0.1 and am having difficulty with usb-storage when I attach my KonicaMinolta 7d to an usb port. The camera is detected and a hard disk icon appears on the screen indicating sda. When I try to mount the device, the mount fails with an error indicating all sorts of possibilities including wrong options. I look in /etc/fstab and see that the following line has been added:

/dev/sda /media/sda vfat noauto,users,exec,umask=000,shortname=winnt,uid=kn oppix,gid=knoppix 0 0

The uid and gid seem strange to me so I edited the line leaving instead:

/dev/sda /media/sda vfat noauto,users,exec,umask=000,shortname=winnt 0 0

and I can then mount the device /dev/sda and get access to my photos. I really hope that I don't have to manually change fstab every time I want access to my camera. Incidently, it all works fine when I boot from the CD.

I haven't found the code which causes the line to be added to /etc/fstab. I was looking for a shell script that does the trick. The closest code I can find is /usr/share/knoppix-installer/templates/etc/hotplug/usb/usb-storage but I don't see how that is called. Apparently, /lib/modules/2.6.17/kernel/drivers/usb/storage/usb-storage.ko
is executed.

Is there a reasonable way to correct the situation? Is there something tricky like moving the script from /usr/share/knoppix-installer to a different place?

By the way, I have read many of the injunctions against using a Knoppix hard disk install.

Thanks in Advance,
Don

humm, does knoppix ask for a usr name when you install it? maybe you are using a differnt usr name then knoppix. btw, fstab is initially built with the knoppix-autoconfig found in /ect/init.d. I had problems hot pluging my usb pendrive, i just boot with it pluged in and have no problems. also, how are you mounting this device? you just click on the desktop icon i would think and konqueror would do the rest. sry i'm not much more help.

I think I found out how to get it working. My first attemp, which worked was to execute the following script after the icon appeared on the screen:

#! /bin/sh
# This is a small script to mount the camera and
# open emacs. When emacs is closed, the camera is
# unmounted.
sleep 1
echo "sleeping 4"
sleep 1
echo "sleeping 3"
sleep 1
echo "sleeping 2"
sleep 1
echo "sleeping 1"
sudo mount -t vfat /dev/sda /media/sda
sleep 1
emacs /media/sda/dcim
sudo umount /dev/sda
echo "camera is unmounted."

Then scouring around in /etc/ I found the file /etc/udev/knoppix.rules and modified it so that it used my user id and group rather than that of knoppix. It now works as I expected it to work.

You might want to iterate like this,

Code:

---

#!/bin/bash
for i in 5 4 3 2 1;do sleep 1; echo "sleep $i"; done
echo "you have now waited 6 seconds... Yippie!!"

# insert commands here :)
exit

---

But the question remains... if you just wait for 6 secs, does clicking on the desktop icon that appears work? If not, I should find out why... could be the udev device management (which is cool and IBM supported so I don't mind looking into it ;) ) and KDE.

If I change /etc/udev/knoppix.rules to use my userid and group, rather than "-u knoppix -g knoppix", then clicking on the icon works. Otherwise, the mount fails because of the userid and group of "knoppix".

When I am running from the Knoppix CD, it works because the user is "knoppix". I think that the knoppix-install script overlooked changing this the knoppix.rules file.

Ok, good work finding out this /etc/udev/knoppix.rules thing. :-)

But what can i do when i want to have multi-user system...?

wow posmanet, i read your 11 posts and i don't see where I talked to you... but whatever, udev rules run as root. You could make rules which call script that either su to a lower permission level or check for current user in the case of new device after init boot. Is that what you are asking?

Hello Zrebel,

sorry if You were irritated by my direct entrance in this discussion - i just wanted to say something like:
"Oh, wow, yes, i've had the same problem and already tried to solve it myself - now i searched on this forum for it and promptly found the solution here, and i'm happy about this!" :roll:

...for the multiuser thing: Yes, calling a script sounds plausible for me and its new to me that this is possible with the udev stuff. (I'm the classical fixed-fstab guy and didnt read much yet about udev.). Thanks for the tip.

Greetings