I have RedHat Linux 5 with a xen kernel. Here is some information on the system: # uname -a Linux dragon 2.6.18-8.1.3.el5xen #1 SMP Mon Apr 16 16:23:32 EDT 2007 i686 athlon i386 GNU/Linux # cat /boot/grub/grub.conf default=0 timeout=5 splashimage=(hd0,0)/grub/splash.xpm.gz hiddenmenu title Red Hat Enterprise Linux Server (2.6.18-8.1.3.el5xen) root (hd0,0) kernel /xen.gz-2.6.18-8.1.3.el5 module /vmlinuz-2.6.18-8.1.3.el5xen ro root=/dev/VolGroup00/LogVol00 rhgb quiet module /initrd-2.6.18-8.1.3.el5xen.img When booting from my recovery CD, which has worked when generated on RH 4 and earlier, I get the following error: Boot: Loading Invalid or corrupt kernel image. Boot: I noticed that the grub.conf file now has a kernel line referencing the "/xen.gz-2.6.18-8.1.3el5" with a seperate module line for " vmlinuz-2.6.18-8.1.3el5xen Does the isolinux.cfg file support the "module" line? It seems like something needs to be added to the isolinux.cfg to make this work now. Thanks for your help, Eric