From owner-freebsd-questions  Fri Jul  7 16:41:44 2000
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Subject: Microtech pcmcia/flash SCSI device
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Date: Fri, 07 Jul 2000 23:41:29 GMT
From: Marty Cawthon <mrc@ChipChat.com>
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Hello,

  I am trying to read a digital cameral Compact Flash by inserting it
into a "pcmcia" (PC Card) carrier, and inserting that combination into 
a SCSI PC Card Reader (Microtech).  This SCSI card reader is connected 
via an external SCSI cable to an AHA-2940UW SCSI controller.

  I expect that I can do a "mount" of this device and read it as a
drive.  My initial attempts were not successful, and it occured to me
that perhaps the format of data on this Compact Flash was not
recognizable to the file system.

  What I tried:

    bash-2.02# mount /dev/da1 /flash
    mount: /dev/da1 on /flash: incorrect super block

Here is some information which may be helpful:

# cat /var/log/messages
<snip>
... /kernel: Waiting 5 seconds for SCSI devices to settle
<snip>
... /kernel: da1 at ahc0 bus 0 target 1 lun 0
... /kernel: da1: <MicTec DPAI-SCSI c2.7> Removable Direct Access SCSI-2 device 
... /kernel: da1: 3.968MB/s transfers (3.968MHz, offset 15)
... /kernel: da1: 7MB (15680 512 byte sectors: 64H 32S/T 7C)
... /kernel: changing root device to da0s1a
... /kernel: da0 at ahc0 bus 0 target 12 lun 0
... /kernel: da0: <IBM DCAS-34330W S65A> Fixed Direct Access SCSI-2 device 
... /kernel: da0: 40.000MB/s transfers (20.000MHz, offset 8, 16bit)
... /kernel: da0: 4134MB (8467200 512 byte sectors: 64H 32S/T 4134C)
... /kernel: da2 at ahc0 bus 0 target 2 lun 0
... /kernel: da2: <MicTec DPAI-SCSI c2.7> Removable Direct Access SCSI-2 device 
... /kernel: da2: 3.968MB/s transfers (3.968MHz, offset 15)
... /kernel: da2: Attempt to query device size failed: NOT READY, Medium not present
<snip>

  This SCSI PC Card Reader will read PC Cards in slot 1 and
"Smartmedia" in slot 2.  I have a PC-Card mounted in slot 1.  I
suspect that "da1" corresponds to "slot 1" and da2 corresponds to
"slot 2".

  Your thoughts and suggestions are welcome.

Marty Cawthon
ChipChat


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