На хосте SL 6.5, в гостях centos7.
Хост раздаёт адреса средствами либвирта, через dnsmasq. С гостями на редхат/sl/centos 6.x проблем нет, с sles11 тоже.
А центос 7 упорствует примерно так
[root@localhost ~]# cat /etc/sysconfig/network-scripts/ifcfg-eth0
TYPE=Ethernet
BOOTPROTO=dhcp
DEFROUTE=yes
PEERDNS=yes
PEERROUTES=yes
IPV4_FAILURE_FATAL=no
IPV6INIT=yes
IPV6_AUTOCONF=yes
IPV6_DEFROUTE=yes
IPV6_PEERDNS=yes
IPV6_PEERROUTES=yes
IPV6_FAILURE_FATAL=no
NAME=eth0
UUID=33a0bd8b-b694-4087-bc97-1f82f2d43a9d
ONBOOT=yes
[root@localhost ~]# ifconfig
eth0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet6 fe80::5054:ff:fe1d:d2d6 prefixlen 64 scopeid 0x20<link>
ether 52:54:00:1d:d2:d6 txqueuelen 1000 (Ethernet)
RX packets 155 bytes 8060 (7.8 KiB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 14 bytes 1860 (1.8 KiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
lo: flags=73<UP,LOOPBACK,RUNNING> mtu 65536
inet 127.0.0.1 netmask 255.0.0.0
inet6 ::1 prefixlen 128 scopeid 0x10<host>
loop txqueuelen 0 (Local Loopback)
RX packets 514 bytes 43660 (42.6 KiB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 514 bytes 43660 (42.6 KiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
[root@localhost ~]# systemctl restart network
Job for network.service failed. See 'systemctl status network.service' and 'journalctl -xn' for details.
[root@localhost ~]# systemctl status network -l
network.service - LSB: Bring up/down networking
Loaded: loaded (/etc/rc.d/init.d/network)
Active: failed (Result: exit-code) since Wed 2014-12-24 04:12:29 EST; 4min 31s ago
Process: 2438 ExecStop=/etc/rc.d/init.d/network stop (code=exited, status=0/SUCCESS)
Process: 2591 ExecStart=/etc/rc.d/init.d/network start (code=exited, status=1/FAILURE)
Dec 24 04:10:59 localhost.localdomain network[2591]: Bringing up loopback interface: Could not load file '/etc/sysconfig/network-scripts/ifcfg-lo'
Dec 24 04:10:59 localhost.localdomain network[2591]: Could not load file '/etc/sysconfig/network-scripts/ifcfg-lo'
Dec 24 04:10:59 localhost.localdomain network[2591]: Could not load file '/etc/sysconfig/network-scripts/ifcfg-lo'
Dec 24 04:11:00 localhost.localdomain network[2591]: Could not load file '/etc/sysconfig/network-scripts/ifcfg-lo'
Dec 24 04:11:00 localhost.localdomain network[2591]: [ OK ]
Dec 24 04:12:29 localhost.localdomain network[2591]: Bringing up interface eth0: Error: Timeout 90 sec expired.
Dec 24 04:12:29 localhost.localdomain network[2591]: [FAILED]
Dec 24 04:12:29 localhost.localdomain systemd[1]: network.service: control process exited, code=exited status=1
Dec 24 04:12:29 localhost.localdomain systemd[1]: Failed to start LSB: Bring up/down networking.
Dec 24 04:12:29 localhost.localdomain systemd[1]: Unit network.service entered failed state.
Что мне уж решительно непонятно - это намёки на невозможность загрузить /etc/sysconfig/network-scripts/ifcfg-lo. Он лежит на месте с содержанием вполне обыденным.
Что делать и кто виноват?