Hi, i use a SATA Harddisk (Seagate 120GB) with Fedora Core 4. Everything in the System is up to date (yum). When i do this: hdparm -tT /dev/sda I get the following error: /dev/sda: Timing cached reads: 1944 MB in 2.00 seconds = 971.94 MB/sec HDIO_DRIVE_CMD(null) (wait for flush complete) failed: Inappropriate ioctl for device Timing buffered disk reads: 170 MB in 3.01 seconds = 56.51 MB/sec HDIO_DRIVE_CMD(null) (wait for flush complete) failed: Inappropriate ioctl for device Its not very fast and the error message is not so good i think. What can i do to solve the Problem? I also tried FC 4 on different Mainboards with different SATA Harddisk. Same error every time. On FC3 with SATA there are no Problems! Downgrading is not possible. I hope someone can help me?! Thank you very much! regards Sebastian