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SubjectRe: How to Switch DMA off for only one Harddisk at Kernelboot

Alan Cox wrote:


> For the current kernel and libata you can use libata.dma=3, and it will
> select DMA for disk (1) + CD (2) but not CF cards. With the older IDE it
> should be sufficient to use hda=nodma

Thanks a lot, but it does not work:

If I use libata.dma=3 I get the following:
[ 0.000000] Unknown boot option `libata.dma=3': ignoring

And if I use hda=nodma:
[ 0.000000] ide_setup: hda=nodma -- BAD OPTION

I use kernel

Any Idea?



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