Problems mounting USB memory stick

dwhitney67 · 08-16-2007, 12:09 PM

Hello,

I'm using a Linux system with kernel version 2.6.9. I am attempting to mount a USB memory stick, yet I am having problems doing so. The mem stick is detected and its built-in LED is active.

I hope the information below will help to analyze the problem I am having:

I ran the following:

# modprobe usb-storage
# modprobe uhci-hcd
# mkdir /mnt/usb

And then the script:

Code:

#!/bin/sh

TYPE=vfat

for dev in sda sdb sdc sdd sde
do
        for i in 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
        do
                mount -t $TYPE /dev/$dev$i /mnt/usb

                if [ $? = 0 ]; then
                        echo "USB stick is mount at /mnt/usb"
                        exit 0
                fi
        done
done

exit 1

In each mount attempt I got an error similar to the following:

Code:

mount: Mounting /dev/sda1 on /mnt/usb failed: No such device

I've also tried changing the TYPE to 'auto', but that also failed.

Here's the output from running 'dmesg':

PHP Code:



usb 1-1:1.0: hotplug 
usb 1-1: unregistering device 
usb 1-1: hotplug 
usb usb1: usb_disable_device nuking all URBs 
usb usb1: unregistering interface 1-0:1.0 
usb 1-0:1.0: hotplug 
usb usb1: unregistering device 
usb usb1: hotplug 
uhci_hcd 0000:00:07.2: USB bus 1 deregistered 
USB Universal Host Controller Interface driver v2.2 
uhci_hcd 0000:00:07.2: Intel Corp. 82371AB/EB/MB PIIX4 USB 
uhci_hcd 0000:00:07.2: new USB bus registered, assigned bus number 1 
usb usb1: new device strings: Mfr=3, Product=2, SerialNumber=1 
usb usb1: default language 0x0409 
usb usb1: Product: Intel Corp. 82371AB/EB/MB PIIX4 USB 
usb usb1: Manufacturer: Linux 2.6.9 uhci_hcd 
usb usb1: SerialNumber: 0000:00:07.2 
usb usb1: hotplug 
usb usb1: adding 1-0:1.0 (config #1, interface 0) 
usb 1-0:1.0: hotplug 
hub 1-0:1.0: usb_probe_interface 
hub 1-0:1.0: usb_probe_interface - got id 
hub 1-0:1.0: USB hub found 
hub 1-0:1.0: no power switching (usb 1.0) 
usb 1-1: new full speed USB device using address 2 
usb 1-1: new device strings: Mfr=1, Product=2, SerialNumber=3 
usb 1-1: default language 0x0409 
usb 1-1: Product: Cruzer Mini 
usb 1-1: Manufacturer: SanDisk Corporation 
usb 1-1: SerialNumber: SNDK9CE4141900A07906 
usb 1-1: hotplug 
usb 1-1: adding 1-1:1.0 (config #1, interface 0) 
usb 1-1:1.0: hotplug 
usb-storage 1-1:1.0: usb_probe_interface 
usb-storage 1-1:1.0: usb_probe_interface - got id 
usb-storage: USB Mass Storage device detected 
usb-storage: -- associate_dev 
usb-storage: Vendor: 0x0781, Product: 0x5150, Revision: 0x0020 
usb-storage: Interface Subclass: 0x06, Protocol: 0x50 
usb-storage: Vendor: SanDisk Corporation,  Product: Cruzer Mini 
usb-storage: Transport: Bulk 
usb-storage: Protocol: Transparent SCSI 
usb-storage: usb_stor_control_msg: rq=fe rqtype=a1 value=0000 index=00 len=1 
usb-storage: GetMaxLUN command result is 1, data is 0 
usb-storage: *** thread sleeping. 
scsi2 : SCSI emulation for USB Mass Storage devices 
usb-storage: queuecommand called 
usb-storage: *** thread awakened. 
usb-storage: Command INQUIRY (6 bytes) 
usb-storage:  12 00 00 00 24 00 
usb-storage: Bulk Command S 0x43425355 T 0x13 L 36 F 128 Trg 0 LUN 0 CL 6 
usb-storage: usb_stor_bulk_transfer_buf: xfer 31 bytes 
usb-storage: Status code 0; transferred 31/31 
usb-storage: -- transfer complete 
usb-storage: Bulk command transfer result=0 
usb-storage: usb_stor_bulk_transfer_buf: xfer 36 bytes 
usb-storage: Status code 0; transferred 36/36 
usb-storage: -- transfer complete 
usb-storage: Bulk data transfer result 0x0 
usb-storage: Attempting to get CSW... 
usb-storage: usb_stor_bulk_transfer_buf: xfer 13 bytes 
usb-storage: Status code 0; transferred 13/13 
usb-storage: -- transfer complete 
usb-storage: Bulk status result = 0 
usb-storage: Bulk Status S 0x53425355 T 0x13 R 0 Stat 0x0 
usb-storage: scsi cmd done, result=0x0 
usb-storage: *** thread sleeping. 
usb-storage: queuecommand called 
usb-storage: *** thread awakened. 
usb-storage: Bad LUN (0:1) 
usb-storage: scsi cmd done, result=0x40000 
usb-storage: *** thread sleeping. 
usb-storage: queuecommand called 
usb-storage: *** thread awakened. 
usb-storage: Bad target number (1:0) 
usb-storage: scsi cmd done, result=0x40000 
usb-storage: *** thread sleeping. 
usb-storage: queuecommand called 
usb-storage: *** thread awakened. 
usb-storage: Bad target number (2:0) 
usb-storage: scsi cmd done, result=0x40000 
usb-storage: *** thread sleeping. 
usb-storage: queuecommand called 
usb-storage: *** thread awakened. 
usb-storage: Bad target number (3:0) 
usb-storage: scsi cmd done, result=0x40000 
usb-storage: *** thread sleeping. 
usb-storage: queuecommand called 
usb-storage: *** thread awakened. 
usb-storage: Bad target number (4:0) 
usb-storage: scsi cmd done, result=0x40000 
usb-storage: *** thread sleeping. 
usb-storage: queuecommand called 
usb-storage: *** thread awakened. 
usb-storage: Bad target number (5:0) 
usb-storage: scsi cmd done, result=0x40000 
usb-storage: *** thread sleeping. 
usb-storage: queuecommand called 
usb-storage: *** thread awakened. 
usb-storage: Bad target number (6:0) 
usb-storage: scsi cmd done, result=0x40000 
usb-storage: *** thread sleeping. 
usb-storage: queuecommand called 
usb-storage: *** thread awakened. 
usb-storage: Bad target number (7:0) 
usb-storage: scsi cmd done, result=0x40000 
usb-storage: *** thread sleeping. 
USB Mass Storage device found at 2

Can someone help me resolve this issue?

Thank you.

dwhitney67 · 08-16-2007, 07:06 PM

I came up with a solution. I followed the instructions on the following page at http://www.linuxquestions.org/linux/...d_Reader_HowTo

But one final thing I had to do to successfully mount my USB mem-stick was to load the vfat and nls_cp437 modules. Btw, my fstab entry looks like:

Code:

/dev/sda1   /mnt/usb   auto   rw,noauto   0   0

Question... Since I am building a Linux distro that can could potentially accept any USB mem-stick, should I build into the kernel all of the "Native Language Support" modules, or is there a better way to select the appropriate NLS module?

kujirasan · 08-18-2007, 12:38 AM

To successfully mount a USB device and in particular a stick, it should read and write, my suggestion is use a higher kernel, and then build your distro, 2.6.22.2 somewhere there.