Re: USB mass storage mapping problem
On Thursday 08 January 2004 02:33 pm, Andrew Perrin wrote:
> 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,
Thanks Andrew. I had forgotten scsi disk support, so the problem was I
didn't have a /dev/sda.
Fixed now, thanks for the input.
Steve
> 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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