On 05/15/2010 12:27 PM, Colin Coles wrote: > I have updated 8 machines so far and 2 are refusing to boot on > 2.6.18-194.3.1.el5 kernel, they just hang at: 'Starting udev:' but when I > revert to 2.6.18-164.15.1.el5 kernel they boot fine. Any pointers? Do you have anything non-standard on the machines ? Start by looking at the h/w specs and setup. - KB