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Re: Problem mounting 2GB SD card in USB card reader



On Wed, Jan 11, 2006 at 09:41:21AM -0600, Ron Johnson wrote:
> On Tue, 2006-01-10 at 23:22 +0000, Steven Flintham wrote:
> > SCSI device sdc: 2031616 1024-byte hdwr sectors (2080 MB)
> > sdc: Write Protect is off
> >  /dev/scsi/host2/bus0/target0/lun2:<6>usb.c: USB disconnect on device
> >  00:07.2-2address 2
> >  hub.c: new USB device 00:07.2-2, assigned address 3
> >  WARNING: USB Mass Storage data integrity not assured
> >  USB Mass Storage device found at 3

> The maximum size of a FAT16 FS is 2GB.  Maybe there's an "off by 1"
> error?
> 
> Have you tried formatting it FAT32, or re-partitioning sdc1 1.95GB?

Thanks, and also to the other poster who suggested this. Unfortunately I
don't seem to be able to repartition, when do I:

# fdisk /dev/sdc

it seems to hang and dmesg shows the following:

SCSI device sdc: 2031616 1024-byte hdwr sectors (2080 MB)
sdc: Write Protect is off
 /dev/scsi/host2/bus0/target0/lun2:<6>usb.c: USB disconnect on device 00:07.2-2address 2
hub.c: new USB device 00:07.2-2, assigned address 3
WARNING: USB Mass Storage data integrity not assured
USB Mass Storage device found at 3
scsi: device set offline - not ready or command retry failed after bus reset: host 2 channel 0 id 0 lun 2
 I/O error: dev 08:20, sector 0
 I/O error: dev 08:20, sector 0
 unable to read partition table

Similar problems occur if I try to make a filesystem using something
other than mkdosfs.

Am I doing something obviously wrong? It could be the card reader is
fundamentally incompatible with the card for some reason, I may see if I
can arrange to try it on a Windows box as a diagnostic measure.

Thanks.

Steve



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