[CLUE-Tech] device names for scsi cdrw

[Adam Bultman]

I've noticed that /dev/scd0 will be your first cdrom device, with 
/dev/scd1 being the second. If those aren't there, check for /dev/sg0 and 
/dev/sg1, I think.  My systems (slackware, debian) typically make links to 
/dev/cdrom for me. 

First things first, however, check dmesg.  Those will have the device 
names listed.

Warning:  You usually need to turn on dma mode to watch DVDs and not have 
it run poorly, since it will be using SCSI emulation, you won't be able to 
turn on dma mode using hdparm. so, you might want to avoid using your DVD 
drive as a 'scsi' device.

Adam

-- 
adamb at glaven.org
[ www.glaven.org ]

On Mon, 3 Feb 2003, Dave Price wrote:

> Hi,
> 
> I have recently installed knoppix and am getting my first exposre to
> scsi emulation.
> 
> I have an IDE DVD drive which now appears as scsi device 0,0,0
> 
> Ialso have a real SCSI burner that used to be 0,3,0 and is now 1,3,0.
> 
> What devices do I symlink to create meaningful names like /dev/dvd and
> /dev/cdrw?
> 
> (Also, is there an easy way to switch the emulation off, since I do not
> really require it on this hardware?
> 
> Here is output from cdrecord -scanbus.
> 
> aloha,
> dave
> 
> Using libscg version 'schily-0.6'
> scsibus0:
> 0,0,0     0) 'PIONEER ' 'DVD-ROM DVD-106 ' '1.22' Removable CD-ROM
> 0,1,0     1) *
> 0,2,0     2) *
> 0,3,0     3) *
> 0,4,0     4) *
> 0,5,0     5) *
> 0,6,0     6) *
> 0,7,0     7) *
> 	
> scsibus1:
> 1,0,0   100) 'WDIGTL  ' 'ENTERPRISE      ' '1.91' Disk
> 1,1,0   101) *
> 1,2,0   102) *
> 1,3,0   103) 'YAMAHA  ' 'CRW8424S ' '1.0g' Removable CD-ROM
> 1,4,0   104) *
> 1,5,0   105) *
> 1,6,0   106) *
> 1,7,0   107) *
> 																	
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