For some time past i bought a hitachi travelstar 7k100 and to my surprise i could not set udma5 with hdparm, the kernel restricted the settings to udma2 because it could not find a 80 wire ribbon cable. as i am not willing to solder one in my notebook, i added the kernelparameter ide0=ata66 to my grub.conf and now i can change to udma5 with hdparm. hopefully this parameter will stay for long time as its allready depreciated and i don’t know if it will be replaced by something else.

 

 

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