Bug 26262

После установки по умолчанию (бета centaurus, но скорее всего общее для всех) libvirtd неработоспособен. Стартует, и сразу валится. 

libxl.log:
libxl: error: libxl.c:56:libxl_ctx_init Is xenstore daemon running?
failed to stat /var/run/xenstored.pid: No such file or directory

libvirtd.log:
21:03:10.753: 8421: info : libvirt version: 0.9.0
21:03:10.753: 8421: error : virCommandWait:1281 : internal error Child process (/sbin/iptables --table mangle --delete POSTROUTING --out-interface virbr0 --protocol udp --destination-port 68 --jump CHECKSUM --checksum-fill) status unexpected: exit status 1
21:03:10.773: 8421: error : virCommandWait:1281 : internal error Child process (/sbin/iptables --table mangle --insert POSTROUTING --out-interface virbr0 --protocol udp --destination-port 68 --jump CHECKSUM --checksum-fill) status unexpected: exit status 1
21:03:10.773: 8421: warning : networkAddGeneralIptablesRules:1178 : Could not add rule to fixup DHCP response checksums on network 'default'.
21:03:10.773: 8421: warning : networkAddGeneralIptablesRules:1179 : May need to update iptables package & kernel to support CHECKSUM rule.
21:03:10.889: 8421: error : libxlStartup:668 : cannot initialize libxenlight context
21:03:10.894: 8421: error : virGetUserID:2920 : Failed to find user record for name '_libvirt': Success
21:03:10.894: 8421: error : virStateInitialize:795 : Initialization of QEMU state driver failed
21:03:10.919: 8421: error : main:3384 : Driver state initialization failed
21:03:10.919: 8422: warning : qemudDispatchSignalEvent:427 : Shutting down on signal 3

Что-то слишком много всего не хватает для libvirtd. Практически вся секция управления виртуализацией неработоспособна.