Hello all! I have actual need to build a custom kernel.(Have to change Preemption model to 'server' and turn off Preempt the big kernel lock, ect) I have heard bits and pieces about these changing defaults in newer kernels but I haven't investigated that yet. This of course is not a problem at all, made my needed changes to the source code and successfully build both the standard and the Xen kernel using the rpmbuild guide from this site found here: http://wiki.centos.org/HowTos/Custom_Kernel Built: kernel-2.6.18-194.11.4.el5.1.x64.x86_64 kernel-xen-2.6.18-194.11.4.el5.1.x64.x86_64 The standard kernel works well, I haven''t messed around much with Xen yet (I get an "Error 13: Invalid or unsupported executable format") if I try to boot to the xen kernel - I have Xen installed correctly I believe: [kend at test225: ~]# rpm -qa | grep xen xen-3.0.3-105.el5_5.5.x86_64 kernel-xen-devel-2.6.18-194.11.4.el5.1.x64.x86_64 xen-libs-3.0.3-105.el5_5.5.x86_64 xen-devel-3.0.3-105.el5_5.5.x86_64 kernel-xen-devel-2.6.18-194.11.4.el5.x86_64 xenwatch-0.5.3-3.el5.x86_64 kernel-xen-devel-2.6.18-8.el5.x86_64 kernel-xen-2.6.18-194.11.4.el5.x86_64 kernel-xen-2.6.18-194.11.4.el5.1.x64.x86_64 But I need to nail down this KVM issue as I would rather use full hardware for my virtualization. Problem I have is that I cannot find a source rpm package for kmod-kvm that will work with my kernel. There are instructions on the KVM site on how to build external module for older kernels, and I tried that, but to make a long story short, mt 2.6.18-194 kernel has no available source rpms that I can use for my custom kernel. Can anyone point me to a source package for kmod-kvm that will work with my 2.6.18-194.11.4.el5 kernel base?? I have spent 2 full days digging through packages on the web and I cannot come up with anything. Thinking of just going with trying out Xen instead, but of course I have an dd issue there too. Any help with either of these issues would be very much appreciated! Sorry for the long post Kenneth M DeChick Linux Systems Administrator Community Computer Service, Inc. http://www.medent.com kend at medent.com Registered Linux User #497318 -- -- -- -- -- -- -- -- -- -- -- Schshschshchsch.-- The Gorn, "Arena", stardate 3046.2 . This message and any attachments may contain information that is protected by law as privileged and confidential, and is transmitted for the sole use of the intended recipient(s). If you are not the intended recipient, you are hereby notified that any use, dissemination, copying or retention of this e-mail or the information contained herein is strictly prohibited. If you received this e-mail in error, please immediately notify the sender by e-mail, and permanently delete this e-mail.