On Thu, Nov 29, 2001 at 11:35, Courtney Thomas wrote: > Steffen Evers wrote: > > > > On Fri, Nov 16, 2001 at 13:42, Hank Marquardt wrote: > > > I used hdparm -d1 to turn it on for the drives and that boosts to 41Mbs > > > on the > > > drives, but the pdc still shows the following: > > > > There are several things that need to be > > set to use UDMA in order to make it work: > > > > 1. PCI Bus > > 2. Controller > > 3. Drives > > > > Make sure you have these two settings in your kernel set: > > CONFIG_IDEDMA_PCI_AUTO=y > > CONFIG_IDEDMA_AUTO=y > > > > There are extra dma settings for this controller as well, I think ... > > > > Compiling the kernel was the best solution for me.
> In what file should the CONFIG_IDEDMA* settings be put, please ? You need to set them in your .config file before compiling it. Another procedure to turn UDMA on is to add #custom part # set drive hda to use UDMA [ -x /sbin/hdparm ] && /sbin/hdparm -d 1 /dev/hda # set drive hdc to use UDMA [ -x /sbin/hdparm ] && /sbin/hdparm -d 1 /dev/hdc #end custom part in your '/etc/init.d/bootmisc.sh' file - requires package hdparm. I have set up one machine with the modified bootmisc.sh using a regular Debian kernel image and one with a custom kernel with the above settings in .config. Both works great! Bye, Steffen
