Leonard den Ottolander wrote:
Hi,
I noticed hdparm doesn't work well on external USB drives. Try a hdparm
-I /dev/sda and see it fail with a "HDIO_DRIVE_CMD(identify) failed:
Invalid argument". (I notice this on both a 2.4 and 2.6 kernel and with
hdparm-6.1.)
My question is whether this is a shortcoming in the usb-storage driver,
or because of some shortcoming in the firmware of the external drive
(case). Or is it because the usb-storage driver uses emulated SCSI and
this is why these commands fail?
I would like to get these commands to work so I can password protect
these drives with the new security commands introduced in hdparm.
Leonard.
hdparm -I only works on IDE devices on my sata drive it does not work
(/dev/sda1) but on the IDE drive (/dev/hda) it does.
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