Enabling DMA

swtaarrs · Posted: Sat Apr 19, 2003 2:10 am Post subject: Enabling DMA

I just got gentoo installed, and I'm in it running lynx right now. How do I check if DMA is enabled on my hard drives and enable it if it's disabled?

valheru-m · n00b Joined: 19 Apr 2003 Posts: 3

As root, run hdparm /dev/hda (if that's your hard drive). That will give you the statistics including dma. If you want to set DMA on, run hdparm /dev/hda -d1. Take a look at section 3.4 of the gentoo install guide for more details about hdparm.

pjp · Administrator Joined: 16 Apr 2002 Posts: 20589

Moved from Installing Gentoo.
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Quis separabit? Quo animo?

bsolar · Bodhisattva Joined: 12 Jan 2003 Posts: 2764

swtaarrs · Posted: Tue Apr 22, 2003 12:25 am Post subject:

I tried hdparm -d1 /dev/hda, but it didn't work. I know that my drive supports dma, it was enabled and working in Windows, and it's a fairly new drive. Any ideas?

Valen · Posted: Tue Apr 22, 2003 2:05 am Post subject:

Did you compile support for your motherboard chipset into your kernel?
If not, it can be found under ATA/IDE/MFM/RLL support ---> in the kernel configuration.