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Re: [LUG] Problems with USB pen-drive...

 

On 4/14/05, Grant Sewell <dclug@xxxxxxxxxxxxxxxxxx> wrote:
Hi all.

I just ordered a loverly 512MB USB 2.0 drive from Ebuyer - a nice Kingston job.  
Shame I can't get the thing to place nicely!

The instructions clearly state that it'll work with Linux 2.4 and above... well, 
I'm pretty sure that 2.6.10 qualifies as "and above".

Here's what happens... I plug in the device (either USB 1.1 or USB 2.0 - doesn't 
matter which) and the device registers itself apparently nicely:
Apr 14 23:13:51 localhost kernel: usb 5-2: new high speed USB device using 
ehci_hcd and address 2
Apr 14 23:13:53 localhost usb.agent[14913]:      usb-storage: already loaded
Apr 14 23:13:53 localhost kernel: scsi4 : SCSI emulation for USB Mass Storage 
devices
Apr 14 23:13:58 localhost kernel:   Vendor: Kingston  Model: DataTraveler 2.0  
Rev: 6.00
Apr 14 23:13:58 localhost kernel:   Type:   Direct-Access                      
ANSI SCSI revision: 02
Apr 14 23:13:58 localhost kernel: SCSI device sda: 1001472 512-byte hdwr sectors 
(513 MB)
Apr 14 23:13:58 localhost kernel: sda: assuming Write Enabled
Apr 14 23:13:58 localhost kernel: SCSI device sda: 1001472 512-byte hdwr sectors 
(513 MB)
Apr 14 23:13:58 localhost kernel: sda: assuming Write Enabled
Apr 14 23:13:58 localhost kernel:  /dev/scsi/host4/bus0/target0/lun0: 
[CUMANA/ADFS] p1<5>Attached scsi removable disk sda at scsi4, channel 0, id 0, lun > 0
Apr 14 23:13:58 localhost kernel: Attached scsi generic sg0 at scsi4, channel 0, 
id 0, lun 0,  type 0
Apr 14 23:13:59 localhost scsi.agent[14950]: disk at 
/devices/pci0000:00/0000:00:0f.2/usb5/5-2/5-2:1.0/host4/target4:0:0/4:0:0:0
Apr 14 23:15:08 localhost kernel: SCSI device sda: 1001472 512-byte hdwr sectors 
(513 MB)
Apr 14 23:15:08 localhost kernel: sda: assuming Write Enabled
Apr 14 23:15:10 localhost kernel:  /dev/scsi/host4/bus0/target0/lun0: 
[CUMANA/ADFS] p1<5>SCSI device sda: 1001472 512-byte hdwr sectors (513 MB)
Apr 14 23:15:10 localhost kernel: sda: assuming Write Enabled

However... I can't use it.  Running "fdisk -l" as root shows the following:
Disk /dev/sda: 512 MB, 512753664 bytes
16 heads, 63 sectors/track, 993 cylinders
Units = cylinders of 1008 * 512 = 516096 bytes

   Device Boot      Start         End      Blocks   Id  System
/dev/sda1               1         993      500440+   e  W95 FAT16 (LBA)

Disk /dev/sda1: 2082.3 GB, 2082317979648 bytes
16 heads, 63 sectors/track, 4034749 cylinders
Units = cylinders of 1008 * 512 = 516096 bytes

     Device Boot      Start         End      Blocks   Id  System
/dev/sda1p1               1         993      500440+   e  W95 FAT16 (LBA)

I have never seen this last entry on a Linux system before, so I'm stumped.  I try 
"# mount -t vfat /dev/sda1 /mnt/pendrive" (pendrive does exist already) and I'm 
told the following:
mount: wrong fs type, bad option, bad superblock on /dev/sda1,
       missing codepage or other error
       In some cases useful info is found in syslog - try
       dmesg | tail  or so

And interestingly, when I try that, I get a load more messages in 
/var/log/messages:
Apr 14 23:22:51 localhost kernel:  /dev/scsi/host4/bus0/target0/lun0: 
[CUMANA/ADFS] p1<3>FAT: invalid media value (0xb9)
Apr 14 23:22:51 localhost kernel: VFS: Can't find a valid FAT filesystem on dev 
sda1.

/dev/sda1p1 doesn't even exist in the /dev directory, so I can't access that.

Any thoughts?

Cheers.

Grant.
--
Artificial intelligence is no match for nuratal stidutipy.

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I'm still very much a newbie where Linux is concerned but CUMANA/ADFS
brought back strong memories from my BBC Micro days.

Google has some hits on what seems to be the same problem. See:
http://ubuntuforums.org/archive/index.php/t-6858.html

-- 
Martinus Scriblerus scripsit

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