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CentOS7修改网卡名称为eth0

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  • Madman
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Synopsis: CentOS6之前基于传统的网卡命名方式如eth0、eth1等，缺点是多接口时可能重启系统后ethX对应的网卡接口会变动。CentOS7之后提供了不同的命名规则，默认是基于固件、拓扑、位置信息来分配，这样做的优点是命名是全自动的、可预知的，缺点是比eth0、wlan0更难读，比如enp131s0f0

1. 修改grub

编辑/etc/default/grub文件：

# vi /etc/default/grub
在GRUB_CMDLINE_LINUX参数中增加net.ifnames=0，即：
GRUB_CMDLINE_LINUX="crashkernel=auto rd.lvm.lv=centos/root rd.lvm.lv=centos/swap net.ifnames=0 rhgb quiet"

重新生成GRUB配置文件，并更新内核参数：

# grub2-mkconfig -o /boot/grub2/grub.cfg
Generating grub configuration file ...
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-d3ea6ff7d55d4a409459174c8477366f
Found initrd image: /boot/initramfs-0-rescue-d3ea6ff7d55d4a409459174c8477366f.img
done

2. 创建udev网络命名规则文件

2.1 获取mac地址

(1) 查看本机所有网络设备的MAC地址

1. ifconfig命令输出信息中的 ether 00:0c:29:02:2f:d3
# ifconfig

2
分类: Linux
标签: CentOS eth0 grub network
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