From owner-freebsd-questions  Sat Nov 11 14:18:58 2000
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Date: Sat, 11 Nov 2000 14:18:50 -0800 (PST)
From: Sefkan Botani <sefkan@tr909.trackstar.org>
To: freebsd-questions@freebsd.org
Subject: CD-Burning / missing device?
In-Reply-To: <Pine.GHP.4.05.10011111351360.25784-100000@steroid.ecst.csuchico.edu>
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> Hello,
> 
> I've been trying to make a backup of certain directory
> and I've run accross some strange problems.
> 
> 1) I have two cd devices, one straight cdrom drive,
>    and the second (obviously) a burner.
>    Both are detected and show up as "cd" and "cd1"
>    respectively.
>    
>    dmesg...
>      cd0 at ahc0 bus 0 target 4 lun 0
>      cd0: <TOSHIBA CD-ROM XM-6401TA 1009> Removable CD-ROM
>         SCSI-2 device
>      cd0: 20.000MB/s transfers (20.000MHz, offset 16)
>      cd1 at ahc0 bus 0 target 6 lun 0
>      cd1: <JVC XR-W2010 1.51> Removable Worm SCSI-2 device
>      cd1: 3.300MB/s transfers
>      cd1: Attempt to query device size failed: NOT READY,
>         medium not present
> ...dmesg
> 
> (
>  Yes yes I know that the transfer rate is REALLY slow
>  for "cd1", please ignore that since it's only a temp
>  hookup - external w/ centronics50 to HD50 adapter -
>  the likely culprit/bottleneck
> )
> 
> Anyway...
> 
> 2) Despite both "cd" and "cd1" showing up in dmesg,
>    only "cd0c","cd0a","rcd0c","rcd0a" existed in
>    /dev.  Simple right? Wrong.
>    I went to /dev and ran the familiar ./MAKEDEV 
>    sequence for "cd1" and the shell deceptively
>    returned the next prompt; but no devices were
>    created.  So I then tried the following:
>    ./MAKEDEV cd1  -- returned nothing
>    ./MAKEDEV rcd1
>    rcd1: no such device name
>    
>    the same error was returned for "rcd1a","rcd1c"
> 
> 
> Any ideas? anyone?
> How come the MAKEDEV script fails?
> And on attempting to create "cd1*" "cd1?" "rcd1?" ?
>   (switch "*" and "?" with appropriate items "a" "c"...)
>
> thanks in advance folks :) 
> -Sefkan Botani
> 
> 



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