Unable to mount USB Flash drive

[yalgayon]

I try to mount an USB flash drive.
Wenn I insert the drive a /dev/sdc device is created, but no /dev/sdc1
I can't mount or use fdisk on /dev/sdc
The device seems to be recognized, but not completely
I read the post on mounting usb drives with FC6, but didnt find the solution
Does anyone have an idea? thanks

var/log/messages :

Jul 6 23:25:59 localhost kernel: usb 3-2.1.4: new full speed USB device using ohci_hcd and address 30
Jul 6 23:25:59 localhost kernel: usb 3-2.1.4: configuration #1 chosen from 1 choice
Jul 6 23:25:59 localhost kernel: hub 3-2.1.4:1.0: USB hub found
Jul 6 23:25:59 localhost kernel: hub 3-2.1.4:1.0: 1 port detected
Jul 6 23:26:00 localhost kernel: usb 3-2.1.4.1: new full speed USB device using ohci_hcd and address 31
Jul 6 23:26:00 localhost kernel: usb 3-2.1.4.1: configuration #1 chosen from 1 choice
Jul 6 23:26:00 localhost kernel: scsi14 : SCSI emulation for USB Mass Storage devices
Jul 6 23:26:05 localhost kernel: scsi scan: INQUIRY result too short (5), using 36
Jul 6 23:26:05 localhost kernel: scsi 14:0:0:0: Direct-Access USB 2.0 Flash Drive 1.00 PQ: 0 ANSI: 0
Jul 6 23:26:05 localhost kernel: sd 14:0:0:0: Attached scsi disk sdc
Jul 6 23:26:05 localhost kernel: sd 14:0:0:0: Attached scsi generic sg4 type 0


/proc/scsi/usb_storage/14

Host scsi14: usb-storage
Vendor: TSE Inc.
Product: USB Mass Storage Device
Serial Number: None
Protocol: Transparent SCSI
Transport: Bulk
Quirks:

[Brian1]

What error do you get when you use the command ' /sbin/fdisk /dev/sdc '
Is the current partition fat type or ntfs?

Brian

[yalgayon]

I get the message :

Unable to read /dev/sdc

I think the filesystem on the key is fat

[yalgayon]

After rebooting the computer, I plug the key again and the mesages in /var/log/messages are different
instead of using ohci_hcd, the kernel try to use ehci_hcd


Jul 8 21:30:01 localhost kernel: hub 5-3.1.4:1.0: 1 port detected
Jul 8 21:30:01 localhost kernel: usb 5-3.1.4.1: new high speed USB device using ehci_hcd and address 8


I remove the ehcd module with the command rmmod ehci_hcd
and my key appears on the desktop.

What is the difference between ehci_hcd and ohci_hcd?


In var/log/messages :

Jul 8 21:31:49 localhost kernel: ehci_hcd 0000:00:0b.2: remove, state 1
Jul 8 21:31:49 localhost kernel: usb usb5: USB disconnect, address 1
Jul 8 21:31:49 localhost kernel: usb 5-3: USB disconnect, address 2
Jul 8 21:31:49 localhost kernel: usb 5-3.1: USB disconnect, address 4
Jul 8 21:31:49 localhost kernel: usb 5-3.1.4: USB disconnect, address 7
Jul 8 21:31:49 localhost kernel: usb 5-3.1.4.1: USB disconnect, address 8
Jul 8 21:31:49 localhost kernel: usb 5-3.3: USB disconnect, address 5
Jul 8 21:31:49 localhost kernel: usb 5-3.4: USB disconnect, address 6
Jul 8 21:31:49 localhost kernel: ehci_hcd 0000:00:0b.2: dma_pool_destroy ehci_qtd, f7a8a000 busy
Jul 8 21:31:49 localhost kernel: ehci_hcd 0000:00:0b.2: dma_pool_destroy ehci_qh, f7a89000 busy
Jul 8 21:31:49 localhost kernel: ehci_hcd 0000:00:0b.2: USB bus 5 deregistered
Jul 8 21:31:49 localhost kernel: ACPI: PCI interrupt for device 0000:00:0b.2 disabled
Jul 8 21:31:49 localhost kernel: usb 3-2: new full speed USB device using ohci_hcd and address 2
Jul 8 21:31:49 localhost kernel: usb 3-2: configuration #1 chosen from 1 choice
Jul 8 21:31:49 localhost kernel: hub 3-2:1.0: USB hub found
Jul 8 21:31:49 localhost kernel: hub 3-2:1.0: 4 ports detected
Jul 8 21:31:49 localhost kernel: usb 3-2.1: new full speed USB device using ohci_hcd and address 3
Jul 8 21:31:50 localhost kernel: usb 3-2.1: configuration #1 chosen from 1 choice
Jul 8 21:31:50 localhost kernel: hub 3-2.1:1.0: USB hub found
Jul 8 21:31:50 localhost kernel: hub 3-2.1:1.0: 4 ports detected
Jul 8 21:31:50 localhost kernel: usb 3-2.3: new low speed USB device using ohci_hcd and address 4
Jul 8 21:31:50 localhost kernel: usb 3-2.3: configuration #1 chosen from 1 choice
Jul 8 21:31:50 localhost kernel: input: USB Optical Mouse USB Optical Mouse as /class/input/input9
Jul 8 21:31:50 localhost kernel: input: USB HID v1.10 Mouse [USB Optical Mouse USB Optical Mouse] on usb-0000:00:0b.0-2.3
Jul 8 21:31:50 localhost kernel: usb 3-2.4: new low speed USB device using ohci_hcd and address 5
Jul 8 21:31:50 localhost kernel: usb 3-2.4: configuration #1 chosen from 1 choice
Jul 8 21:31:50 localhost kernel: input: SAITEK P220 as /class/input/input10
Jul 8 21:31:50 localhost kernel: input: USB HID v1.00 Joystick [SAITEK P220] on usb-0000:00:0b.0-2.4
Jul 8 21:31:50 localhost kernel: usb 3-2.1.4: new full speed USB device using ohci_hcd and address 6
Jul 8 21:31:51 localhost kernel: usb 3-2.1.4: configuration #1 chosen from 1 choice
Jul 8 21:31:51 localhost kernel: hub 3-2.1.4:1.0: USB hub found
Jul 8 21:31:51 localhost kernel: hub 3-2.1.4:1.0: 1 port detected
Jul 8 21:31:51 localhost kernel: usb 3-2.1.4.1: new full speed USB device using ohci_hcd and address 7
Jul 8 21:31:51 localhost kernel: usb 3-2.1.4.1: configuration #1 chosen from 1 choice
Jul 8 21:31:51 localhost kernel: scsi3 : SCSI emulation for USB Mass Storage devices
Jul 8 21:31:56 localhost kernel: scsi scan: INQUIRY result too short (5), using 36
Jul 8 21:31:56 localhost kernel: scsi 3:0:0:0: Direct-Access USB 2.0 Flash Drive 1.00 PQ: 0 ANSI: 0
Jul 8 21:31:56 localhost kernel: SCSI device sdc: 512000 512-byte hdwr sectors (262 MB)
Jul 8 21:31:56 localhost kernel: sdc: Write Protect is off
Jul 8 21:31:56 localhost kernel: sdc: assuming drive cache: write through
Jul 8 21:31:56 localhost kernel: SCSI device sdc: 512000 512-byte hdwr sectors (262 MB)
Jul 8 21:31:56 localhost kernel: sdc: Write Protect is off
Jul 8 21:31:56 localhost kernel: sdc: assuming drive cache: write through
Jul 8 21:31:56 localhost kernel: sdc: sdc1
Jul 8 21:31:56 localhost kernel: sd 3:0:0:0: Attached scsi disk sdc
Jul 8 21:31:56 localhost kernel: sd 3:0:0:0: Attached scsi generic sg4 type 0
Jul 8 21:31:58 localhost hald: mounted /dev/sdc1 on behalf of uid 500

[yalgayon]

I have found a way to always mount my key.

If the ehci_hcd module is loaded, I plug my key and she doesn't mount.
I remove the module with 'rmmod ehci_hcd' and my key is automounting.

After that, if I unplug en plug my key again, she doesn't mount.
I load the module with 'modprobe ehci_hcd' and my key is automounting again.

It's a weird behaviour. Is it a bug of the kernel?
Does someone has a solution to have a more classical behaviour?
I can each time unload or load the ehci_hcd module, but it's a little boring!

thanks