I had the same problem and solved it by turning it around. On the kernel command line, disable all dma, then turn it on for the ide controllers that need it. I couldn't see any other way.
Grub boot line: kernel (hd0,0)/vmlinuz-2.4.8-34.1mdk root=/dev/hda5 devfs=mount ide=nodma ide0=dma hdc=ide-scsi hdd=ide-scsi gm On Wed, Mar 27, 2002 at 08:04:51AM -0600, Stephen Boulet wrote: > On Wednesday 27 March 2002 12:41 am, you wrote: > > Stephen Boulet wrote: > > > How do I execute the command: > > > > > > hdparm -d0 /dev/hdc > > > > > > with the devfs? I need to pass this to the cdwriter otherwise it has lots > > > of trouble reading CDs. > > > > I am not sure you can run an hdparm command on a cdrom drive. You can > > take the dma off the drive by doing so in bios.... > > Thanks. I'll try the bios thing. > > But I can verify that, on LM 8.1 with devfs disabled, hdparm worked fine on > the cdrw; it was actually necessary for reading. So there should be a way to > do it. > > In fact, trying to install an rpm from the cdrw now will lock up everything > hard, forcing a reboot. > > -- Stephen -- +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Gregory H. Margo Home: [EMAIL PROTECTED] [EMAIL PROTECTED] Work: [EMAIL PROTECTED]
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