I've a problem with a recently bought usb disk:there is a /dev/sda node
but no /dev/sda1 . When I try to access /dev/sda, I've the following
errors :
sanduleak ~ # fdisk /dev/sda
Unable to open /dev/sda
sanduleak ~ # dd if=/dev/sda of=/dev/null
dd: opening `/dev/sda': No medium found
When I plug it, tje following entries are added to dmesg :
usb 3-2: new full speed USB device using uhci_hcd and address 6
scsi2 : SCSI emulation for USB Mass Storage devices
usb-storage: device found at 6
usb-storage: waiting for device to settle before scanning
Vendor: Generic Model: USB Flash Drive Rev: 1.04
Type: Direct-Access ANSI SCSI revision:
02
sd 2:0:0:0: Attached scsi removable disk sda
usb-storage: device scan complete
The strangest part is the lsusb output (verbose output at the end of the
mail):
sanduleak ~ # lsusb -s6
Bus 003 Device 006: ID 1043:8006 iCreate Technologies Corp.
Flash Disk 32 MB
This is a not an iCreate 32MB drive, but a Kingston DataTraveler Elite
1GB drive. I did some first tests with small files, and it worked OK. I
then loaded a ~100MB file from a windows computer on the usb key and
went away to travel (It shold be "DataTraveler" disk, after all). I'm
now in China, with no access to this disk :-(.
Is that
1. a user bug (I did something very stupid),
2. a disk bug (My disk is corrupted some how),
3. or a software bug.
In case 1. and 2., how can I check it ?
The lsusb output let me suspect it's case 3, especially the false 32 MB
disk size. If it's the case, can I possibly correct it ? Where should I
look ? And Where should I report the bug ?
Thanks for having read until here.
Fred
PS: here is the output of lsusb -vs6 , if it can be useful.
Bus 003 Device 006: ID 1043:8006 iCreate Technologies Corp. Flash Disk
32 MB
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 1.10
bDeviceClass 0 (Defined at Interface level)
bDeviceSubClass 0
bDeviceProtocol 0
bMaxPacketSize0 8
idVendor 0x1043 iCreate Technologies Corp.
idProduct 0x8006 Flash Disk 32 MB
bcdDevice 1.00
iManufacturer 0
iProduct 0
iSerial 0
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 32
bNumInterfaces 1
bConfigurationValue 1
iConfiguration 0
bmAttributes 0x80
MaxPower 100mA
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 2
bInterfaceClass 8 Mass Storage
bInterfaceSubClass 6 SCSI
bInterfaceProtocol 80 Bulk (Zip)
iInterface 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0040 1x 64 bytes
bInterval 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x02 EP 2 OUT
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0040 1x 64 bytes
bInterval 0
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