Mark Lord wrote: > That's odd. Could you try that again, > with the latest (either v7.3 or v7.4) version of hdparm > (from sourceforge) ? Using Debian's 7.3 via apt-get experimental - is that OK or would you like me to compile the upstream? 2.6.21.1 cu:~# hdparm -V hdparm v7.3 cu:~# hdparm -K1 /dev/hda /dev/hda: setting drive keep features to 1 (on) HDIO_DRIVE_CMD(keepsettings) failed: Input/output error dmesg: skge eth0: Link is up at 1000 Mbps, full duplex, flow control both hda: drive_cmd: status=0x51 { DriveReady SeekComplete Error } hda: drive_cmd: error=0x04 { DriveStatusError } ide: failed opcode was: 0xef David - To unsubscribe from this list: send the line "unsubscribe linux-ide" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html