Have anyone get a ubuntu guest worked in centos? I try now but only recive errors insmod: error inserting '/lib/scsi_mod.ko': -1 Operation not permitted Loading sd_mod.ko module ksign: module signed with unknown public key - signature keyid: 88a2b9299d40c296 ver=3 insmod: error inserting '/lib/sd_mod.ko': -1 Operation not permitted Loading libata.ko module ksign: module signed with unknown public key - signature keyid: 88a2b9299d40c296 ver=3 insmod: error inserting '/lib/libata.ko': -1 Operation not permitted Loading ata_piix.ko module ksign: module signed with unknown public key - signature keyid: 88a2b9299d40c296 ver=3 insmod: error inserting '/lib/ata_piix.ko': -1 Operation not permitted Loading dm-mod.ko module ksign: module signed with unknown public key - signature keyid: 88a2b9299d40c296 ver=3 insmod: error inserting '/lib/dm-mod.ko': -1 Operation not permitted Loading dm-log.ko module ksign: module signed with unknown public key - signature keyid: 88a2b9299d40c296 ver=3 insmod: error inserting '/lib/dm-log.ko': -1 Operation not permitted Loading dm-mirror.ko module I use kernel = "/boot/vmlinuz-2.6.18-128.el5xen" ramdisk = "/boot/initrd-2.6.18-128.1.6.el5xen" Any tip?