CentOS7上删除virbr0网卡的步骤

ref="https://xwenw.com/tag/%e8%af%b4%e6%98%8e" target="_blank">说明：之前在centos7下配置过bridge，现在讲bridge模式改为普通模式后，查看网卡的时候还是可以看到很多垃圾信息，想彻底删除自己不想要的网卡配置信息，操作如下:

[root@linux-node1 ~]# ip add list
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN qlen 1
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
 valid_lft forever preferred_lft forever
inet6 ::1/128 scope host 
 valid_lft forever preferred_lft forever
2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 1000
link/ether 00:0c:29:9b:7d:d6 brd ff:ff:ff:ff:ff:ff
inet 10.10.10.11/24 brd 10.10.10.255 scope global eth0
 valid_lft forever preferred_lft forever
inet6 fe80::20c:29ff:fe9b:7dd6/64 scope link 
 valid_lft forever preferred_lft forever
4: virbr0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue state DOWN qlen 1000
link/ether 52:54:00:f4:24:05 brd ff:ff:ff:ff:ff:ff
inet 192.168.122.1/24 brd 192.168.122.255 scope global virbr0
 valid_lft forever preferred_lft forever
5: virbr0-nic: <BROADCAST,MULTICAST> mtu 1500 qdisc pfifo_fast master virbr0 state DOWN qlen 1000
link/ether 52:54:00:f4:24:05 brd ff:ff:ff:ff:ff:ff

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查看网络列表：

[root@linux-node1 ~]# virsh net-list
 Name StateAutostart Persistent
----------------------------------------------------------
 defaultactive yes yes

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使用“virsh net-destroy default”删除

[root@linux-node1 ~]# virsh net-destroy default
Network default destroyed

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从配置文件中剔除

[root@linux-node1 ~]# virsh net-undefine default
Network default has been undefined

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重启libvirtd服务

[root@linux-node1 ~]# systemctl restart libvirtd.service
[root@linux-node1 ~]# virsh net-list
 Name StateAutostart Persistent
----------------------------------------------------------
[root@linux-node1 ~]# ip add list
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN qlen 1
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
 valid_lft forever preferred_lft forever
inet6 ::1/128 scope host 
 valid_lft forever preferred_lft forever
2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 1000
link/ether 00:0c:29:9b:7d:d6 brd ff:ff:ff:ff:ff:ff
inet 10.10.10.11/24 brd 10.10.10.255 scope global eth0
 valid_lft forever preferred_lft forever
inet6 fe80::20c:29ff:fe9b:7dd6/64 scope link 
 valid_lft forever preferred_lft forever

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再次查看，发现不必要的信息已经清除，清爽多了

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