Core 2: USB storage problem ("can't read superblock)
Xia Bin
Xia1911NE at 163.com
Tue Jul 20 06:49:17 UTC 2004
Hi
I have an old USB memory stick (32MB), it works allright under Core 1;
and used to work allright too under Core 2.
But today I failed to mount it with "mount -t vfat /dev/sda /mnt/usb/",
the output is like below:
-----------------------------------------------------------------------
SCSI error : <2 0 0 0> return code = 0x70000
end_request: I/O error, dev sda, sector 0
Buffer I/O error on device sda, logical block 0
unable to read partition table
Attached scsi removable disk sda at scsi2, channel 0, id 0, lun 0
Vendor: Model: Rev:
Type: Direct-Access ANSI SCSI revision: 02
end_request: I/O error, dev sda, sector 0
Buffer I/O error on device sda, logical block 0
FAT: unable to read boot sector
mount: /dev/sda: can't read superblock
"mount: /dev/sda: can't read superblock"
The kernel version is 2.6.6-1.435.2.3
-----------------------------------------------------------------------
Below is the output of USBVIEW:
-----------------------------------------------------------------------
usb-storage
Speed: 12Mb/s (full)
USB Version: 1.10
Device Class: 00(>ifc )
Device Subclass: 00
Device Protocol: 00
Maximum Default Endpoint Size: 8
Number of Configurations: 1
Vendor Id: 0c76
Product Id: 0005
Revision Number: 1.00
Config Number: 1
Number of Interfaces: 1
Attributes: 80
MaxPower Needed: 100mA
Interface Number: 0
Name: usb-storage
Alternate Number: 0
Class: 08(stor.)
Sub Class: 6
Protocol: 50
Number of Endpoints: 3
Endpoint Address: 81
Direction: in
Attribute: 2
Type: Bulk
Max Packet Size: 64
Interval: 0ms
Endpoint Address: 02
Direction: out
Attribute: 2
Type: Bulk
Max Packet Size: 64
Interval: 0ms
Endpoint Address: 83
Direction: in
Attribute: 3
Type: Int.
Max Packet Size: 8
Interval: 255ms
Thanks
------------------
Xia
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