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Old 02-21-2008, 04:52 AM
Big Daddy Butthead
 
Posts: n/a
Default Re: How to enable dma at bootup?

Roy Bamford wrote:
>
> Jon,
>
> hdparm won't work through scsi emulation.
>
> Look in /proc/ide/ ... /settings.
> You can change these settings too.
>
> Where ... is dependent on which ide device your dvd is.


My dvd is the master on the second ide device (ide1). The settings
file for /dev/hdc shows dma off, and I think my dvd is /dev/hdc, though
in fstab it is listed as /dev/cdroms/cdrom0 which is linked to
/dev/scsi/host0/bus0/target0/lun0/cd. I am confused as to how/where
the cdrom device actually gets linked to /dev/hdc, but it must be
it because I only have 2 other drives, and they are hda and hdb.

So the next question is, how to I change the settings file for /dev/hdc.
It is not an editable file.
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