On Tue, Apr 28, 2009 at 6:24 PM, Craig White <craigwhite at azapple.com> wrote: > Could be a problem with the USB port on the CentOS computer, or if you > are using a cable on with that computer, the cable. Same cable everywhere. Four different computers (two desktops, two laptops; three custom-built, one an HP; and the HP is the one running CentOS 5.3). Fails on CentOS 4.7 desktop and CentOS 5.3 laptop. Works on Windows XPsp3 desktop and Ubuntu 8.04 laptop. Maxtor OneTouch works on the CentOS 5.3 laptop (in fact, that laptop has its root filesystem on the Maxtor USB). So it sure looks like some specific incompatibility of this I/O Magic drive enclosure with the EL4/EL5 USB drivers.