CentOS7修改网卡名称

我在VMWare workstation里面安装的centos7虚拟机设置了2张网卡，网卡名称默认为eno16777736、eno33554984：

[root@controller ~]# ip a1: 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 forever2: eno16777736: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 1000    link/ether 00:50:56:3a:78:ee brd ff:ff:ff:ff:ff:ff    inet 192.168.128.85/24 brd 192.168.128.255 scope global eno16777736       valid_lft forever preferred_lft forever    inet6 fe80::250:56ff:fe3a:78ee/64 scope link        valid_lft forever preferred_lft forever3: eno33554984: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 1000    link/ether 00:0c:29:72:41:10 brd ff:ff:ff:ff:ff:ff    inet 10.10.10.10/24 brd 10.10.10.255 scope global eno33554984       valid_lft forever preferred_lft forever    inet6 fe80::20c:29ff:fe72:4110/64 scope link        valid_lft forever preferred_lft forever

如果改为eth0、eth1，该如何操作呢？

1.修改配置

[root@controller ~]# vi /etc/default/grub

GRUB_CMDLINE_LINUX 加上 net.ifnames=0 biosdevname=0

GRUB_CMDLINE_LINUX="net.ifnames=0 biosdevname=0 crashkernel=auto rd.lvm.lv=centos/root rd.lvm.lv=centos/swap rhgb quiet"

2.重新加载配置
grub2-mkconfig -o /boot/grub2/grub.cfg

[root@controller ~]# grub2-mkconfig -o /boot/grub2/grub.cfgGenerating grub configuration file ...Found linux image: /boot/vmlinuz-3.10.0-693.5.2.el7.x86_64Found initrd image: /boot/initramfs-3.10.0-693.5.2.el7.x86_64.imgFound linux image: /boot/vmlinuz-3.10.0-327.28.3.el7.x86_64Found initrd image: /boot/initramfs-3.10.0-327.28.3.el7.x86_64.imgFound linux image: /boot/vmlinuz-3.10.0-327.el7.x86_64Found initrd image: /boot/initramfs-3.10.0-327.el7.x86_64.imgFound linux image: /boot/vmlinuz-0-rescue-0ff0e879cd2f443cb90ec9afa4d66dfbFound initrd image: /boot/initramfs-0-rescue-0ff0e879cd2f443cb90ec9afa4d66dfb.imgdone

3.修改网卡名称

[root@controller ~]# cd /etc/sysconfig/network-scripts/[root@controller network-scripts]# vi ifcfg-eno16777736

修改为
NAME=eth0
DEVICE=eth0

[root@controller network-scripts]# mv ifcfg-eno16777736 ifcfg-eth0

同样另外一张网卡改为eth1

4.重启机器

发现通过ssh连接不到 192.168.128.85
进入vmware控制台查看，还是显示原网卡名称，再查看网络服务状态，显示failed

如何解决？

进入目录 /etc/udev/rules.d/
[root@controller ~]# cd /etc/udev/rules.d/
查看 90-eno-pix.rules

# This file was automatically generated on systemd updateSUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="00:50:56:3a:78:ee", NAME="eno16777736"SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="00:0c:29:72:41:10", NAME="eno33554984"

看到还是之前的网卡名称
删掉此文件，或者改为正确的网卡名称，注意和mac对应，然后重启机器

这次成功了

[root@controller ~]# ip a1: 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 forever2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 1000    link/ether 00:50:56:3a:78:ee brd ff:ff:ff:ff:ff:ff    inet 192.168.128.85/24 brd 192.168.128.255 scope global eth0       valid_lft forever preferred_lft forever    inet6 fe80::250:56ff:fe3a:78ee/64 scope link        valid_lft forever preferred_lft forever3: eth1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 1000    link/ether 00:0c:29:72:41:10 brd ff:ff:ff:ff:ff:ff    inet 10.10.10.10/24 brd 10.10.10.255 scope global eth1       valid_lft forever preferred_lft forever    inet6 fe80::20c:29ff:fe72:4110/64 scope link        valid_lft forever preferred_lft forever