On Mon, 26 Aug 2002, Nate Eldredge wrote: > The other question is how it should be enabled. One way is "hdparm -d 1 > /dev/hd?" or moral equivalent in an init script. Another way appears to > be "hda=dma ..." or "ide0=dma ..." on the kernel command line, though I > haven't tested this yet. Apparently there are also CD-ROM drives for > which it should not be enabled.
Further info: "hda=dma" doesn't seem to exist, I was mistaken. "ide0=dma" doesn't actually enable dma, for some reason. "ide0=autotune" doesn't either. Grr. As for hdparm, this is complicated with ide-scsi. For ide-scsi to work you have to make the ide-cd module ignore the scsi-ified drive. In which case /dev/hdc or whatever it is won't work until you have loaded the ide-scsi module, perhaps by touching /dev/scd0. So at least in my setup, further complications are needed. (Btw: a nice way to enable ide-scsi might be nice as well. CD burners are becoming very common.) -- Nate Eldredge HMC CS Staff [EMAIL PROTECTED]