Re: USB card reader

["A.J. Bonnema" <abonnema xs4all nl>]

A.J. Bonnema wrote:
> Scott Burns wrote:
>
> > A.J. Bonnema wrote:
> >
> > Try this:
> >    dd if=/dev/sda1 of=test bs=1024 count=2
> >    file test
> >
> > This will copy the first 2k of the card and put it in a file.  file 
> > will then tell you what it thinks it is.
>
>
> Thanks for this explanation. It didn't work though. For /dev/sda it 
> gives "dd opening '/dev/sda1': no such device or address.
> For /dev/sda it gives:
>
> "
> dd: reading '/dev/sda': Intput/output error
> 0+0 records in
> 0+0 records out
> "
I found out some more from /var/log/message in reaction to 'fdisk -l 
/dev/sda'. The output follows:


Nov 24 02:00:55 abonnema kernel: sda: Unit Not Ready, sense:
Nov 24 02:00:55 abonnema kernel: Current 00:00: sense key Not Ready
Nov 24 02:00:55 abonnema kernel: Additional sense indicates Medium not 
present
Nov 24 02:00:55 abonnema kernel: sda : READ CAPACITY failed.
Nov 24 02:00:55 abonnema kernel: sda : status = 1, message = 00, host = 
0, driver = 08
Nov 24 02:00:55 abonnema kernel: Current sd00:00: sense key Not Ready
Nov 24 02:00:55 abonnema kernel: Additional sense indicates Medium not 
present
Nov 24 02:00:55 abonnema kernel: sda : block size assumed to be 512 
bytes, disk size 1GB.
Nov 24 02:00:55 abonnema kernel: sda: Write Protect is off
Nov 24 02:00:55 abonnema kernel:  sda: I/O error: dev 08:00, sector 0
Nov 24 02:00:55 abonnema kernel:  I/O error: dev 08:00, sector 0
Nov 24 02:00:55 abonnema kernel:  unable to read partition table
Nov 24 02:01:14 abonnema kernel: sda: Unit Not Ready, sense:
Nov 24 02:01:14 abonnema kernel: Current 00:00: sense key Not Ready
Nov 24 02:01:14 abonnema kernel: Additional sense indicates Medium not 
present
Nov 24 02:01:14 abonnema kernel: sda : READ CAPACITY failed.
Nov 24 02:01:14 abonnema kernel: sda : status = 1, message = 00, host = 
0, driver = 08
Nov 24 02:01:14 abonnema kernel: Current sd00:00: sense key Not Ready
Nov 24 02:01:14 abonnema kernel: Additional sense indicates Medium not 
present
Nov 24 02:01:14 abonnema kernel: sda : block size assumed to be 512 
bytes, disk size 1GB.
Nov 24 02:01:14 abonnema kernel: sda: Write Protect is off
Nov 24 02:01:14 abonnema kernel:  sda: I/O error: dev 08:00, sector 0
Nov 24 02:01:14 abonnema kernel:  I/O error: dev 08:00, sector 0
Nov 24 02:01:14 abonnema kernel:  unable to read partition table
Nov 24 02:01:14 abonnema kernel: Device not ready.  Make sure there is a 
disc in the drive.
Nov 24 02:01:14 abonnema kernel:  I/O error: dev 08:00, sector 0

Does anyone know what is going on? I *can* reach the same disk from windows.

Guus.
--
A.J. Bonnema, Leiden The Netherlands,
user #328198 (Linux Counter)