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

    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 2.6.21.5.

    Any Idea?

    Thanks

    Olli


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