Centos7.4系统将网卡
名称修改为eth0
方法一:安装操作系统时,设置内核参数。
如下内核引导处时,选择“Install CentOS 7”,按tab键修改内核参数,加入net.ifnames=0 biosdevname=0。回车开始安装系统。
![Centos7.4修改网卡为eth0 Centos7.4修改网卡为eth0](http://img.voidcn.com/vcimg/static/loading.png)
设置网卡ip时已经发现网卡设备名已更改为eth0
![Centos7.4修改网卡为eth0 Centos7.4修改网卡为eth0](http://img.voidcn.com/vcimg/static/loading.png)
系统安装成功通过ifcon
fig命令查看仍然为eth0
![Centos7.4修改网卡为eth0 Centos7.4修改网卡为eth0](http://img.voidcn.com/vcimg/static/loading.png)
方法2: 安装完系统后进行修改。第一步:系统安装结束后查看当前网卡
名称为ens33.
[
[email protected] ~]# ifcon
figens33: flags=4163<UP,B
roaDCAST,RUNNING,MULTICAST> mtu 1500
inet 192.168.2.131 netmask 255.255.255.0 b
roadcast 192.168.2.255
inet6 fe80:
:1dc3:7a21
:103e:c958 prefixlen 64 scop
EID 0x20<link>
ether 00:0c:29:d5:85:54 txqueuelen 1000 (Ethernet)
RX packets 117 bytes 14086 (13.7 KiB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 109 bytes 15871 (15.4 KiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
lo: flags=73<UP,LOOP
BACK,RUNNING> mtu 65536
inet 127.0.0.1 netmask 255.0.0.0
inet6 :
:1 prefixlen 128 scop
EID 0x10<host>
loop txqueuelen 1 (Local Loop
BACk)
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
第二步:编辑网卡的
配置文件将”/etc/syscon
fig/network-scripts/ifcfg-ens33“的NAME与DEVICE参数项
修改为eth0。将网卡
配置文件ifcfg-ens33
修改为ifcfg-eth0
[
[email protected] ~]# cd /etc/syscon
fig/network-scripts/
[
[email protected] network-scripts]# vi ifcfg-ens33
TYPE="Ethernet"
PROXY_METHOD="none"
BROWSER_ONLY="no"
BOOTPROTO="dhcp"
DEFROUTE="yes"
IPV4_FAILURE_FATAL="no"
IPV6INIT="yes"
IPV6_AUTOCONF="yes"
IPV6_DEFROUTE="yes"
IPV6_FAILURE_FATAL="no"
IPV6_ADDR_GEN_MODE="stable-privacy"
NAME=" eth0"
UUID="
c3136d13-6e1e-4a7b-bcfb-f8e85e0351e0"
DEVICE="eth0"
ONBOOT="yes"
[
[email protected] network-scripts]#mv ifcfg-ens33 ifcfg-eth0
第三步:
修改grub来禁用该命名规则
编辑grub
配置文件/etc/syscon
fig/grub,在GRUB_CMDLINE_LINUX变量中
添加一句”net.ifnames
=0 biosdevname
=0“.
[
[email protected] grub2]#vi /etc/syscon
fig/grub
GRUB_TIMEOUT=5
GRUB_DI
StriBUTOR="$(sed ‘s,release .
$,g‘ /etc/system-releasE)"
GRUB_DEFAULT=saved
GRUB_DISABLE_SUBMENU=true
GRUB_TERMINAL_OUTPUT="console"
GRUB_CMDLINE_LINUX="crashkernel=auto rhgb quiet"
GRUB_DISABLE_RECOVERY="true"
[[email protected] grub2]# vi /etc/default/grub
GRUB_TIMEOUT=5
GRUB_DIStriBUTOR="$(sed ‘s,release .$,g‘ /etc/sy
stem-releas
E)"
GRUB_DEFAULT=saved
GRUB_DISABLE_SUBMENU=true
GRUB_TERMINAL_OUTPUT="console"
GRUB_CMDLINE_LINUX="crashkernel=auto rhgb quiet net.ifnames
=0 biosdevname
=0"
GRUB_DISABLE_RECOVERY="true
第四步:
重新生成grub配置并更新
内核参数运行命令:grub2-mkcon
fig -o /boot/grub2/grub.cfg
[
[email protected] grub2]# grub2-mkcon
fig -o /boot/grub2/grub.cfg
Gene
rating grub con
figuration file ...
Found linux image: /boot/vmlinuz-3.10.0-693.el7.x86_64
Found initrd image: /boot/initramfs-3.10.0-693.el7.x86_64.img
Found linux image: /boot/vmlinuz-0-rescue-77
419a0d119c43968d735f6a0b8534f4
Found initrd image: /boot/initramfs-0-rescue-77
419a0d119c43968d735f6a0b8534f4.img
done
[
[email protected] grub2]#
第7步:重启系统后验证
[
[email protected] ~]# ifcon
figeth0: flags=4163<UP,MULTICAST> mtu 1500
inet 192.168.2.131 netmask 255.255.255.0 b
roadcast 192.168.2.255
inet6 fe80::bf21:39fc:b077:3c9b prefixlen 64 scop
EID 0x20<link>
ether 00:0c:29:d5:85:54 txqueuelen 1000 (Ethernet)
RX packets
801 bytes 84912 (82.9 KiB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 520 bytes 83725 (81.7 KiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
lo: flags=73<UP,RUNNING> mtu 65536
inet 127.0.0.1 netmask 255.0.0.0
inet6 :
:1 prefixlen 128 scop
EID 0x10<host>
loop txqueuelen 1 (Local Loop
BACk)
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
[[email protected] ~]#
@H_
607_2@