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我希望你做得很好，我在这里开始使用 OpenNebula，我在 centos 8 中部署了一个基本设置一个 Opennebula 前端作为 OpenNebula 节点，另一个服务器作为 OpenNebula 节点，我从市场下载一个图像它是 centos 图像，然后我在网络下创建一个网络 >> 虚拟网络。用 ens33 桥接它（ens3 是我节点的物理接口），以便让 VM 访问 LAN，他是我的节点网

[centos@host1 ~]$ ifconfig
ens33: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 192.168.0.60  netmask 255.255.255.0  broadcast 192.168.0.255
        ether 00:0c:29:68:26:2b  txqueuelen 1000  (Ethernet)
        RX packets 679155  bytes 994474147 (948.4 MiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 41914  bytes 3220552 (3.0 MiB)
        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 1000  (Local Loopback)
        RX packets 6  bytes 672 (672.0 B)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 6  bytes 672 (672.0 B)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

virbr0: flags=4099<UP,BROADCAST,MULTICAST>  mtu 1500
        inet 192.168.122.1  netmask 255.255.255.0  broadcast 192.168.122.255
        ether 52:54:00:89:84:b1  txqueuelen 1000  (Ethernet)
        RX packets 0  bytes 0 (0.0 B)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 0  bytes 0 (0.0 B)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

一旦我创建了一个虚拟机并将它附加到我已经创建的桥接网络，我就会得到状态失败并显示以下日志：

Sat May 1 03:50:25 2021 [Z0][VM][I]: New state is ACTIVE
Sat May 1 03:50:25 2021 [Z0][VM][I]: New LCM state is PROLOG
Sat May 1 03:50:38 2021 [Z0][VM][I]: New LCM state is BOOT
Sat May 1 03:50:38 2021 [Z0][VMM][I]: Generating deployment file: /var/lib/one/vms/14/deployment.0
Sat May 1 03:50:39 2021 [Z0][VMM][I]: Successfully execute transfer manager driver operation: tm_context.
Sat May 1 03:50:40 2021 [Z0][VMM][I]: Command execution fail: cat << EOT | /var/tmp/one/vnm/bridge/pre
Sat May 1 03:50:40 2021 [Z0][VMM][E]: pre: Command "sudo ip link add name ens33 type bridge " failed.
Sat May 1 03:50:40 2021 [Z0][VMM][E]: pre: RTNETLINK answers: File exists
Sat May 1 03:50:40 2021 [Z0][VMM][E]: RTNETLINK answers: File exists
Sat May 1 03:50:40 2021 [Z0][VMM][E]:
Sat May 1 03:50:40 2021 [Z0][VMM][I]: ExitCode: 2
Sat May 1 03:50:40 2021 [Z0][VMM][I]: Failed to execute network driver operation: pre.
Sat May 1 03:50:40 2021 [Z0][VMM][E]: Error deploying virtual machine: bridge: RTNETLINK answers: File exists
Sat May 1 03:50:40 2021 [Z0][VM][I]: New LCM state is BOOT_FAILURE

谁能向我解释这里出了什么问题，我熟悉 vsphere esxi/vcenter，我只想创建一个 VMNetwork 并将其附加到节点物理 NIC，然后将 VM 附加到此 VMNetwork 以便在 VMware 上为其提供 LAN 访问权限一方面很简单，但是使用 OpenNebula 我不确定它是如何工作的

谢谢

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1 回答 1

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这里的问题是您使用的是物理接口而不是网桥。如果您想使用桥接网络，您需要创建一个桥接器或让 OpenNebula 为您创建它。

如果这能回答您的问题，请告诉我，如果没有，请随时在 OpenNebula 论坛 - https://forum.opennebula.io/上提交您的查询。:)

于 2021-05-04T09:02:13.793 回答