On 1/20/06, Alan Stern <[EMAIL PROTECTED]> wrote:
> What do you get from "dd if=/dev/sda count=1 | hexdump -C"?
>
> Alan Stern
>

Hi,

% dd if=/dev/sda count=1 | hexdump

gives all zeroes. If I increase count, occasionally some data shows up
which isn't meaningful ascii, but mostly zero. The same flashdisk
mounts fine on a known-to-work platform, and shows the same output for
the above command.

Also below is what I get from usb-storage when I type the above
command on the platform that fails mounting.

Do you have a suggestion for what to check? Since the drive mounts
fine on a host controller that works, I guess it's not the partition
table I need to inspect?

Many thanks,
Bahadir

usb-storage: queuecommand called
usb-storage: *** thread awakened.
usb-storage: Command READ_10 (10 bytes)
usb-storage:  28 00 00 00 00 00 00 00 80 00
usb-storage: Bulk Command S 0x43425355 T 0x12 L 65536 F 128 Trg 0 LUN 0 CL 10
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_sglist: xfer 65536 bytes, 6 entries
usb-storage: Status code 0; transferred 65536/65536
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 0x12 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: Command ALLOW_MEDIUM_REMOVAL (6 bytes)
usb-storage:  1e 00 00 00 00 00
usb-storage: Bulk Command S 0x43425355 T 0x13 L 0 F 0 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: 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.
~ #


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