Приветствую.

  А всё ли нужное собрано у libvirt?

  Пересобирая сизифовский libvirt для 4.0, заметил следующую диагностику
у ./configure:

...
checking for udevadm... no
checking for udevsettle... no
...
checking for lokkit... no
...
checking for XMLRPC... no
...
checking for NETCF... no
...
checking for pvcreate... no
checking for vgcreate... no
checking for lvcreate... no
checking for pvremove... no
checking for vgremove... no
checking for lvremove... no
checking for vgchange... no
checking for vgscan... no
checking for pvs... no
checking for vgs... no
checking for lvs... no
checking for iscsiadm... no
...
checking for HAL... no
checking for UDEV... no
...
configure:
configure: Configuration summary
configure: =====================
configure:
configure: Drivers
configure:
configure:      Xen: no
configure:    Proxy: no
configure:     QEMU: yes
configure:      UML: yes
configure:   OpenVZ: yes
configure:     VBox: yes
configure:      LXC: yes
configure:     PHYP: no
configure:      ONE: no
configure:      ESX: no
configure:     Test: yes
configure:   Remote: yes
configure:  Network: yes
configure: Libvirtd: yes
configure:    netcf: no
configure:
configure: Storage Drivers
configure:
configure:      Dir: yes
configure:       FS: yes
configure:    NetFS: yes
configure:      LVM: no
configure:    iSCSI: no
configure:     SCSI: yes
configure:    mpath: no
configure:     Disk: yes
configure:
configure: Security Drivers
configure:
configure:  SELinux: no
configure: AppArmor: no
configure:
configure: Driver Loadable Modules
configure:
configure:   dlopen: no
configure:
configure: Libraries
configure:
configure:   libxml: -I/usr/include/libxml2   -lxml2
configure:  libcurl: no
configure:  libssh2: no
configure:   gnutls:  -lgnutls -lpthread
configure:     sasl:   -lsasl2
configure:    avahi: -D_REENTRANT   -lavahi-common -lavahi-client
configure:   polkit: no
configure:  selinux: no
configure: apparmor: no
configure:  numactl: no
configure:    capng: no
configure:      xen: no
configure:      hal: no
configure:     udev: no
configure:    netcf: no
configure:   xmlrpc: no
configure:
configure: Test suite
configure:
configure:    Coverage: no
configure:   Alloc OOM: no
configure:
configure: Miscellaneous
configure:
configure:      Debug: yes
configure:   Warnings: maximum
configure:   Readline: yes
configure:     Python: yes
configure:
configure: Privileges
configure:
configure:       QEMU: root:root
configure:

  ИМХО, как минимум не хватает LVM, iSCSI и udev...

-- 

С уважением. Алексей.