USB storage devices

[paradocs]

Hi Johnny3,

KNOPPIX by default makes devices read only. It
is part of the philosopy of a demonstation project
to not harm a system, unless the user enables
something.

I suspect you need to right click on the desktop
icon --> propertiex -->device --> and uncheck
the read only box.

Some usb pen drives may need to be partitioned
and formated -- but most should work as they are.

Best Wishes
paradocs

[c_cinq]

how to mount the usb devices or create icons on the destop which points to the proper device? do I find such mounting point in fstab or proc or dev or usbview?

[paradocs]

Greetings c_cinq,

My experience is with KNOPPIX CD -- not with KNOPPIX converted
to a dabien hard drive install.

The CD does a good job a setting up the file
/etc/fstab.

You may rebuild it by entring the folling command in a shell:
rebuildfstab -r

You may update the icons of the hard drives on the KDE desktop with:
mkdesktophdicons

For othes right click and the desktop, create new ...
A frequent problem it to fail to make the device rw.
Right click the icon, properties, device, unclick read only.

Best Wishes
paradocs

[jpmierau]

Hi folks, any help greatly appreciated!

In my konqueror view, sda1 (lexar jumpdrive) shows up, as does my card reader as sdb (oddly enough, just sdb even with three cards in it).

In fstab (after a rebuildfstab -r) I see entries for sda1, sdb1, sdc1 and sdb with the following syntax:
/dev/xxx /mnt/xxx auto noauto,users,exec 0 0

Here's the prob:
I can't write to sda1, the jumpdrive, though I can read from it (this is AFTER changing permissions to read, write, execute, & granting those permissions to all users through konqieror>>properties).

Much help would be appreciated, been pounding keys for 3 hours to absolutely no avail -- thanks in advance!

+++++++
Knoppix...it's a good thing!
+++++++

[lunat1k]

I've had the same problem with the /sda1-4 being recognized.

With my unpartitioned usb drive, the actual usable device is just /dev/sda without a partition#.

I had to either:
A: Manually mount like: mount -t vfat /dev/sda /mnt/mountpointyoucreated
or
B: Use the vendor supplied windows utility to partition the usb key into 2 or more partitions.

The latter saves on confusion if you do find yourself running into this.

Why is it like this? I'll leave that to the kernel guys...

[cputoaster]

I can't get my USB flash disk (or any other USB device except the hub) to work. This is what I did for my laptop wich uses UHCI:

I added in /etc/fstab this line:
"none /proc/bus/usb usbdevfs noauto 0 0"
and next i run in a root shell "mount /proc/bus/usb"

I run usbview, which comes with Knoppix,and get this output:
USB UHCI Root Hub
Serial number: 2400
speed: 12Mb/s (full)
Number of ports:2
Bandwidth allocated 0.900 (0%)
Total number of interrupt requests: 0
total number of isosynchronous requests: 0
USB Version 1.00
Device Class: 09(hub)
Device subclass 00
Device protocol:0
Max Default Endpoint size: 8
Number of configurations:1
Config number:1
Number of interfaces:1
Attributes:40
MAx power needed 0mA

Interface Number 0
Name hub
Alternate number:0
class 09 (hub)
sub class :0
Protocol: 0
Number of endpoints:1

Endpoint address: 81
direction: in
attribute:3
type" int.
max packet size:8
interval 255ms


After running "lsmod |grep usb" I obtain:
usb-storage 60960 0 (unused)
usb-uhci 21836 0 (unused)
usbcore 57472 1 [usb-storage usb-uhci]

If I try to mount the Sony USB flash disk with this command: "mount -t vfat /dev/sda1 /mnt/flashdisk", I
get "/dev/sda1 not a valid block device". Usiing /dev/sda /dev/sda2 does not
make any change. I created the mount directory myself.
Why don't I get any proof of the Sony USB 2.0 flashdisk in terms of some current more than 0mA or any mention of the flashdisk itself? I plug in a USB mouse and get no difference. Am I supposed to see a 001 and a 002 directory in /proc/bus/usb to say one hub device plus one flashdisk?

I read at http://www.linux-usb.org/USB-guide/c122.html that I must make menuconfig to add devices to be registered in the /proc/bus/usbdrivers? What directory am I supposed to be in for that make? Is this the only way to do this?
Any help greatly appreciated,
Thanks

[cyclotron]

Dear all,

I ran into these problems when I tried to connect my digital camera to my computer after using a USB memory stick. The stick was on /dev/sda4 and the camera on /dev/sda1. When I tried to mount the camera I got a pop-up saying "/dev/sda1 is not a valid block device".
I do not know how to realy solve the problem in a nice way, but a manner of living with the problem is to remove the usb-storage module and then initialize it again. To do this, use
<unmount and plug out the device you used.>
modprobe -r usb-storage
modprobe usb-storage
<plug in and mount the device you want to use.>
in a terminal. Most likely you have to login as root to do so.
I'd love to hear better solutions.

cyclotron

[Mickey_p]

I have an M-systems DiskOnkey USB disk

I run Knopppix 3.4
under vmware workstation 3.2 build 2230 over a Microsoft Windows 2000 Professional sp3

I had to go to Devices in vmware to allow sending my usb to the linux box.

-----------------------
i too get 4 partitons for my small 32mb usb device, but hey thats life..

when i mount /dev/sda1 it has a file devices there that tells me the exact company, so i know it's recognized.

at first i edited the /etc/fstab manually (im new to linux, jus installed yesterday..)
and it worked, mounting to /dev/bus/usb
-thanks goolgle, and linux-org, linux-usb and others..

----------------
now i restarted and simply typed in

mount /dev/sda4 /dev/sda4
when i clicked the sda4 icon in the dsktop, it was already mounted, and a quick check with
mount informed me it was already rw for owner..

owner being root i assume

btw, i have been mounting through smbfs which is much more convenient..

the cmdline is

mkdir /mnt/sharename
mount -t smbfs -o username=user,password=pass //windowsmachine/share /mnt/sharename
ln -s /mnt/sharename ~/sharename

this is very easy to acheive, and since i am having trouble with setting up the home dir and config file to a stadard port, i keep having to type in these commands with every boot. luckily the vmware allows me to suspend the machine instead of closing it.



i use x-win 5.2 and putty with X11 forwarding
but i cant setup the knoppix box to NOT LOAD X-Windows on startup, does anyone know how i can do this ?

i want to load X by myself, from a terminal.

thanks.

-Mick