SCSI cd emulation

Matt Zimmerman mdz at
Fri Mar 4 19:22:17 CST 2005

On Sat, Mar 05, 2005 at 02:08:32AM +0100, Vincenzo Di Massa wrote:

> I noticed that the last 2.6.10-25 kernel detects my CD/DVD drives as scsi 
> devices.
> For some reason the system hangs on boot (before init startup) when detecting 
> the cdwriter.
> My question is the following: why is scsi emulation needed? Shouldn't it be 
> avoided becouse it is buggy with 2.6.x kernels. How can it be disabled?
> In the ide-scsi 2.4.x days I used hdc=ide-scsi in the kopts to enable it. But 
> now I don't have it set and ide-scsi is popping up anyway.
> I post this question here becouse:
> 1) If it is a bug I think ubuntu-dev is the right place (bug tracers... 
> nhaaa!!)
> 2) If it is not a bug, I would like to know why ide-scsi got resurrected.

I assume that you are using an SATA controller.

Are you actually seeing the ide-scsi module loaded and in use, or are you
inferring its existence from the use of SCSI-style device nodes?

 - mdz

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