CentOS7修改网卡名称eth0
CentOS7修改网卡名称eth0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：
# ip a
1: lo: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: eno16777736: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 forever
3: eno33554984: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
# 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# grub2-mkconfig -o /boot/grub2/grub.cfg
Generating grub configuration file ...
Found linux image: /boot/vmlinuz-3.10.0-693.5.2.el7.x86_64
Found initrd image: /boot/initramfs-3.10.0-693.5.2.el7.x86_64.img
Found linux image: /boot/vmlinuz-3.10.0-327.28.3.el7.x86_64
Found initrd image: /boot/initramfs-3.10.0-327.28.3.el7.x86_64.img
Found linux image: /boot/vmlinuz-3.10.0-327.el7.x86_64
Found initrd image: /boot/initramfs-3.10.0-327.el7.x86_64.img
Found linux image: /boot/vmlinuz-0-rescue-0ff0e879cd2f443cb90ec9afa4d66dfb
Found initrd image: /boot/initramfs-0-rescue-0ff0e879cd2f443cb90ec9afa4d66dfb.img
done 3.修改网卡名称
# cd /etc/sysconfig/network-scripts/
# vi ifcfg-eno16777736
修改为
NAME=eth0
DEVICE=eth0
# 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？
http://s1.运维网.com/images/20181113/1542087574620536.png
进入目录 /etc/udev/rules.d/
# cd /etc/udev/rules.d/
查看 90-eno-pix.rules
# This file was automatically generated on systemd update
SUBSYSTEM=="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
# ip a
1: lo: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: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 forever
3: eth1: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 Centos 7 网卡配置无错：
# cat /etc/sysconfig/network-scripts/ifcfg-eth0
TYPE=Ethernet
PROXY_METHOD=none
BROWSER_ONLY=no
BOOTPROTO=static
DEFROUTE=yes
IPV4_FAILURE_FATAL=no
NAME=eth0
DEVICE=eth0
ONBOOT=yes
DNS1=223.5.5.5
DNS2=223.6.6.6
IPV6INIT=no
IPADDR=10.0.0.129
NETMASK=255.255.255.0
GATEWAY=10.0.0.2
PREFIX=24
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