[plug] SCSI host adapter emulation ?

Mark O'Shea mark at musicalstoat.co.uk
Mon Aug 16 12:07:19 WST 2004


On Mon, 2004-08-16 at 11:12, ranime wrote:
> Hi,
> In mandrake 9-1, I think I had the cd writer mounted as a ide-scsi device.
> Now in Mandrake 10 I think it mounts the cd writer as atapi.
> 
> How do I regain SCSI host adapter emulation for IDE ATAPI devices ?
> 
> The reason I want to achive this is so I can read the blank cdr and dvd 
> media codes again.

Hi,

I don't use Mandrake myself but AFIAK Mandrake 10 uses the 2.6 kernel,
which apparently has better atapi drivers for writing cds.  I haven't
written any cds using the 2.6 kernel yet but the kernel docs say:
"WARNING: ide-scsi is no longer needed for cd writing applications!    
  The 2.6 kernel supports direct writing to ide-cd, which eliminates the
need for ide-scsi + the entire scsi stack just for writing a cd. The new
method is more efficient in every way."

and:

 "If both this SCSI emulation and native ATAPI support are compiled into
the kernel, the native support will be used."

The last bit indicates that you should still be able to use it if you
compile the kernel without the natice ATAPI support, but I don't know
how well it will work as the above seems to indicate that the kernel is
now biased against the SCSI emulation.

Still, you may be able to read the media codes with the never ATAPI
drivers anyway.  Have you tried googling to see what others are doing
with regard to this?

-- 
Mark O'Shea




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