Patrick Lane wrote: > blacktop:/home/mandingo# for i in a b; do hdparm -d 1 /dev/hd$i; done > > /dev/hda: > setting using_dma to 1 (on) > HDIO_SET_DMA failed: Operation not permitted > using_dma = 0 (off) > > /dev/hdb: > setting using_dma to 1 (on) > HDIO_SET_DMA failed: Operation not permitted > using_dma = 0 (off) > blacktop:/home/mandingo# > > It won't let me. Do I have to enable something in the kernel?
What ATA speed does your mobo support ? What ATA speed is your HDD ? If your mobo runs at a lower speed than your disk you may need to go to your disk manufacturers website and grab a utility that you can use to force your disk to run at the lower speed. I know in theory all these ATA standards are supposed to be backwards compatible, but my own experiences tell me otherwise. Simon Hepburn.