Hi, I had an issue with this kernel upgrade too. All worked fine until the 194 Kernel then hung on boot on 4 machines all with identical motherboards. All had USB keyboards, when replaced with PS2 keyboards all worked fine! What is to blame? - motherboard, kernel or keyboard.. I have no idea. I have also seen similar hangs on boot with asrock motherboards and there crazy version of a VGA slot that only too certain cards. Does you machine have an onboard graphics adapter you could try booting with? Steve On Sun, 6 Jun 2010, John Thomas wrote: > I have a machine that has worked fine for years on CentOS5. > kernel-PAE-2.6.18-164.15.1.el5 is the last "works fine" kernel, but > kernel-PAE-2.6.18-194.3.1.el5 crashes at boot every time. > > I tried banging on the side of the monitor to no avail. > > All kidding aside, here are pictures of my monitor when booting 194 in > case that is helpful. > http://jt-socal.com/sites/jt-socal.com/files/kernel-panic.jpg > http://jt-socal.com/sites/jt-socal.com/files/just-before-crashing.jpg > > Any suggestions on fixing this? > > -- Dr Stephen Brooks http://www-solar.mcs.st-and.ac.uk/ Solar MHD Theory Group Tel :: 01334 463735 Fax :: 01334 463748 E-mail :: steveb at mcs.st-andrews.ac.uk --------------------------------------- Mathematical Institute North Haugh University of St. Andrews St Andrews, Fife KY16 9SS SCOTLAND ---------------------------------------