Hi, I am using Centos 5.4 x86_64 with kernel 2.6.18-164.11.1.el5xen. I've installed a Centos 5.4 (64 bit too) DomU (paravirtualized), process was apparently with no problems, but DomU refuses to start, this the error: Traceback (most recent call last): File "/usr/share/virt-manager/virtManager/engine.py", line 498, in run_domain vm.startup() File "/usr/share/virt-manager/virtManager/domain.py", line 573, in startup self.vm.create() File "/usr/lib64/python2.4/site-packages/libvirt.py", line 287, in create if ret == -1: raise libvirtError ('virDomainCreate() failed', dom=self) libvirtError: La operación POST falló: xend_post: error del demonio de xen: (xend.err "Error creating domain: Boot loader didn't return any data!") End of Error Message. Config file is as follows: name = "fido" uuid = "af13748d-6084-2357-73b7-0c7ff9ed9553" maxmem = 1500 memory = 1500 vcpus = 16 bootloader = "/usr/bin/pygrub" on_poweroff = "destroy" on_reboot = "restart" on_crash = "restart" vfb = [ "type=vnc,vncunused=1,keymap=es" ] disk = [ "phy:/dev/VolGroup00/LogVol02,xvda,w" ] vif = [ "mac=00:16:36:19:a7:66,bridge=xenbr0,script=vif-bridge" ] Please could you tell me what'w wrong with it? Thanks in advance!! -- -- Open Kairos http://www.sergiobelkin.com Watch More TV http://sebelk.blogspot.com Sergio Belkin -