On Wednesday, July 13, 2011 09:38:28 AM Timothy Kesten wrote: > Am Mittwoch, 13. Juli 2011 14:34 schrieb Lamar Owen: > > What does: dmesg|grep xhci tell you? > > Nothing Yeah, no xhci kernel module.... > > USB3 is supposed to be fully supported in EL6, > So I have to wait until CentOS 6 is tested (testing machine has no USB3) and > then is installed on production server. > Not such a big problem cause USB2 works with that drives - but slow ;-( Once you've tasted the speed of USB3 you really don't want to go back..... It's as fast as native eSATA on most of my USB3-capable externals. Over twice as fast as USB2 on them. An alternative would be to use the ELrepo 'mainline' kernel, assuming it has the xhci and/or xhci_hcd modules; but you'd be on your own configuring udev and friends to use it. If that were to work, I sure would be interested.