Re: USB mass storage mapping problem
You can't mount the scsi generic (sg) device; you need to map the
associated disk. Assuming the LITE-ON device from your sg_scan is a scsi
removable (sr) device such as a CD-ROM, your SD reader should be sda. You
can check this with:
fdisk /dev/sda
to make sure you're right. If so, you can:
mount -tvfat -oumask=0000 /dev/sda1 /mnt/sdcard
Cheers,
ap
----------------------------------------------------------------------
Andrew J Perrin - http://www.unc.edu/~aperrin
Assistant Professor of Sociology, U of North Carolina, Chapel Hill
clists@perrin.socsci.unc.edu * andrew_perrin (at) unc.edu
On Thu, 8 Jan 2004, steve wrote:
> Hello, does anyone know what I might be missing with trying to get a valid
> device for an usb SD card reader?
>
> Thanks for any input,
> Steve
>
> sg_scan -i and sg_map show the following:
> bash-2.03# sg_scan -i
> /dev/sg0: scsi0 channel=0 id=0 lun=0 [em] type=5
> LITE-ON LTR-48246S SS06 [wide=0 sync=0 cmdq=0 sftre=0 pq=0x0]
> /dev/sg1: scsi0 channel=0 id=1 lun=0 [em] type=5
> CD-ROM Drive/F5A B1.4 [wide=0 sync=0 cmdq=0 sftre=0 pq=0x0]
> /dev/sg2: scsi1 channel=0 id=0 lun=0 [em] type=0
> Generic USB SD Reader 2.00 [wide=0 sync=0 cmdq=0 sftre=0 pq=0x0]
> bash-2.03# sg_map
> /dev/sg0 /dev/scd0
> /dev/sg1 /dev/scd1
> /dev/sg2
>
> sg2 is not mountable:
> bash-2.03# mount -t vfat /dev/sg2 /camera
> mount: /dev/sg2 is not a block device
>
> The cd is mountable under two devices:
> bash-2.03# mount -t iso9660 /dev/scd1 /cdrom
> mount: block device /dev/scd1 is write-protected, mounting read-only
> bash-2.03# mount -t iso9660 /dev/sr1 /cdrom
> mount: block device /dev/sr1 is write-protected, mounting read-only
>
> my kern.log
> Jan 7 01:03:37 debian kernel: host/uhci.c: USB UHCI at I/O 0xb800, IRQ 5
> Jan 7 01:03:37 debian kernel: usb.c: new USB bus registered, assigned bus
> number 2
> Jan 7 01:03:37 debian kernel: hub.c: USB hub found
> Jan 7 01:03:37 debian kernel: hub.c: 2 ports detected
> Jan 7 01:03:37 debian kernel: Initializing USB Mass Storage driver...
> Jan 7 01:03:37 debian kernel: usb.c: registered new driver usb-storage
> Jan 7 01:03:37 debian kernel: USB Mass Storage support registered.
> Jan 7 01:03:37 debian kernel: NET4: Linux TCP/IP 1.0 for NET4.0
>
> Should be something like this:
> Initializing USB Mass Storage driver...
> usb.c: registered new driver usb-storage
> scsi1 : SCSI emulation for USB Mass Storage devices
> Vendor: CONCORD Model: DIGITAL CAMERA Rev: 1.00
> Type: Direct-Access ANSI SCSI revision: 02
> Attached scsi removable disk sda at scsi1, channel 0, id 0, lun 0
> SCSI device sda: 246016 512-byte hdwr sectors (126 MB)
> sda: Write Protect is off
> sda: sda1
>
>
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