[plug] hdparm -d1 /dev/hdc

[Craig Ringer]

Rob Dunne wrote:
> Hi Bill,
>          unfortunately there doesnt seem to be an ide interface chip
> 
> [robd at rubber robd]$ ls  /proc/ide/
> drivers  hda  hdc  ide0  ide1

Most likely that's your problem. The kernel probably doesn't support 
your ATA chipset at more than a basic, generic ATA level.

What kernel version are you using, and what ATA chipset? Try posting 
'lspci' and 'uname -a' output.

Alternately, just upgrade to 2.4.21.

Craig Ringer