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Re: Mixing IDE and IDE-SCSI emulation on a Channel

Try moving your cdrom (hdd) to the "hdb" position if posible.
If you cannot due to some or other reason, double check the master/slave 
settings on the cdwriter and cdrom.

If you really need to have the cdwriter seen as a cdrom on ide, you can
always make another entry in your lilo.conf or grub.conf.
The one you are using now, as you know, has an append hdc=ide-scsi entry.
Make another entry for the same kernel under a different label without 
In one machine, i have a cdwriter where you have yours and a harddisk 
(ide) on hdd.
I have no problems with that setup.
Regards, Willem

On Fri, 27 Feb 2004, Reuben D. Budiardja wrote:

> Hi all,
> I recently put in a CD-RW drive in my system, and make it the master drive on 
> the secondary channel (hdc). The CD Rom drive that was already there becomes 
> the slave hdd.
> Following the CD-Writing-Howto, I finally figure out how to use 
> cdrecord/xcdroast and that I have to use the CD-RW as a SCSI device using the 
> ide-scsi emulation module (the Redhat doc in redhat site is horrible and not 
> helping by the way).
> But I still can't figure out how to play regular CD player, or rip a CD to mp3 
> using grip on that CD-RW drive, which acts as if it were a SCSI device. No 
> problem, I thought, I just use the other CD-rom drive. However, when ripping 
> a CD, I notice that the performance is kinda slower than usual. For example, 
> lame would have to sit idle waiting for the ripping to complete, when usually 
> the ripping of 1 CD would complete and lame would be behind like 75 % of 
> completion. 
> Another problem, I have found the CD-ROM device to generate errore like below, 
> 2 times after I installed the CD-RW:  
> kernel: hdd: ATAPI reset complete
> kernel: hdd: irq timeout: status=0xd0 {Busy}
> kernel: hdd: irq timeout: error=0xd0LastFailedSense 0x0d
> Once it makes the system hung intermittenly, it almost crashed the system. But 
> I managed to reboot and it seems that it fixed the problem (at least up till 
> now). I don't know if this just coincidence of has anything to do with the 
> newly installed CD-RW.
> So, no real quantitative assesment yet (not sure how to do that),  but I am 
> wondering if mixing the IDE-SCSI simulated device (CD-RW) and IDE/ATAPi 
> device (CD-rom) in a single channel as Master and Slave would make my CD-ROM 
> slower and generate those problems.
> Any info / comments will be greatly appreciated.
> Thanks.
> RDB 

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