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