Changing default root file system to btrfs

David Gilbert david.gilbert at linaro.org
Thu Aug 4 13:56:21 UTC 2011


On 4 August 2011 14:52, James Tunnicliffe <james.tunnicliffe at linaro.org> wrote:
> I have seen poor performance when DDing to a card, which I assume is
> because dd is not writing large aligned chunks. If we can dd the first
> meg or so of data onto the card, then write in 4MB chunks that are all
> 4MB aligned that should be quick (at least, if my reading of my
> flashbench results is correct).

What options to dd are you using?  dd if=file of=/dev/thewholedevice bs=4096k
should write 4MB chunks out

Dave



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