>>> >>> That's incorrent. I have three Rhel5.1 x86_64 xenhosts with >>> different 32 bits domU, centos 5.1, centos 5.0 and rhel5.1 included ... >>> >>> I think that problem is selinux. In redhat docs explains that domU >>> needs to reside on /var/lib/xen if you use selinux. You can try to >>> disable selinux (/etc/sysconfig/selinux) and all works ok. >>> >> I have got selinux disabled. >> > Are you sure?? Then, why on your /var/log/messages selinux errors > appears?? > Ok, I've disabled selinux (again) and rebooted, but still get the same error: Welcome to CentOS +------------------+ Package Installation +------------------+ | | | Name : | | Size : | | Summary: | | | | | | Status:+---------+ Install Starting +----------+ | | | | | | | Starting install process. This may | | | | take several minutes... | | | | | Time | | Total +---------------------------------------+ | | Complet | | Remaining: 355 575M | | | | 0% | | | +------------------------------------------------------------+ sending termination signals...done sending kill signals...done disabling swap... /dev/mapper/VolGroup00-LogVol01 unmounting filesystems... /mnt/runtime done disabling /dev/loop0 /proc done /dev/pts done /sys done /tmp/ramfs done /selinux done /mnt/sysimage/boot done /mnt/sysimage/sys done /mnt/sysimage/proc done /mnt/sysimage/selinux done /mnt/sysimage/dev done /mnt/sysimage done rebooting system Restarting system. Guest installation complete... restarting guest. libvir: Xen Daemon error : POST operation failed: (xend.err "Error creating domain: Boot loader didn't return any data!") exception was: virDomainCreate() failed POST operation failed: (xend.err "Error creating domain: Boot loader didn't return any data!") Domain installation may not have been successful. If it was, you can restart your domain by running 'virsh start vm02'; otherwise, please restart your installation. This time it didn't see a package from the network server, and I told it to reboot, just to see what happens.... What controls the boot loader that it's complaining about? -- Kind Regards Rudi Ahlers CEO, SoftDux Web: http://www.SoftDux.com Check out my technical blog, http://blog.softdux.com for Linux or other technical stuff, or visit http://www.WebHostingTalk.co.za for Web Hosting stugg