虚拟机更改网卡名称

「爱情、让人受尽委屈。」 2024-02-18 23:24 100阅读 0赞

虚拟机更改网卡名称

VMWare装的CentOS虚拟机的自带网卡名有点乱，想重新定义一下。

## 环境 ##

### 1、VMWare虚拟机 ###

![70][]

### 2、系统 ###

[root@localhost ~]# cat /etc/redhat-release 
    CentOS Linux release 7.2.1511 (Core)

并且是最小化安装。

#### 网卡信息 ####

![70 1][]

#### 网卡配置文件 ####

![70 2][]

#### 配置内容 ####

![70 3][]

这里启动下网卡，获得IP，好连接shell

systemctl restart network

ip addr

![70 4][]

默认使用DHCP，都是自动获取的IP

## 配置 ##

CentOS7使用了“[一致性网络命名方法][Link 1]”，这里举例，将网卡名截断为前5个字符，如eno16777736改为eno16。

### 1、更改网卡配置文件名 ###

![70 5][]

复制ETH1和2，并把设备名改了

### 2、关闭“一致性网络设备命名法” ###

cat /etc/sysconfig/grub 
    GRUB_TIMEOUT=5
    GRUB_DISTRIBUTOR="$(sed 's, release .*$,,g' /etc/system-release)"
    GRUB_DEFAULT=saved
    GRUB_DISABLE_SUBMENU=true
    GRUB_TERMINAL_OUTPUT="console"
    GRUB_CMDLINE_LINUX="crashkernel=auto rd.lvm.lv=centos/root rd.lvm.lv=centos/swap rhgb quiet"
    GRUB_DISABLE_RECOVERY="true"
    [root@localhost ~]#

添加net.ifnames=0 biosdevname=0后

cat /etc/sysconfig/grub 
    GRUB_TIMEOUT=5
    GRUB_DISTRIBUTOR="$(sed 's, release .*$,,g' /etc/system-release)"
    GRUB_DEFAULT=saved
    GRUB_DISABLE_SUBMENU=true
    GRUB_TERMINAL_OUTPUT="console"
    GRUB_CMDLINE_LINUX="crashkernel=auto rd.lvm.lv=centos/root rd.lvm.lv=centos/swap net.ifnames=0 biosdevname=0 rhgb quiet"
    GRUB_DISABLE_RECOVERY="true"

更新GRUB、内核配置

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-f034e6e19df748b7a27fad77b06e3179
    Found initrd image: /boot/initramfs-0-rescue-f034e6e19df748b7a27fad77b06e3179.img
    done

### 3、添加设备规则配置文件 ###

修改/etc/udev/rules.d/70-persistent-net.rules，没有该文件则新建文件

内容如下

cat /etc/udev/rules.d/70-persistent-net.rules

\# ACTION=="add", SUBSYSTEM=="net", DRIVERS=="?\*", ATTR\{type\}=="32", ATTR\{address\}=="?\*00:02:c9:03:00:31:78:f2", NAME="mlx4\_ib3"  
ACTION=="add", SUBSYSTEM=="net", DRIVERS=="?\*", ATTR\{type\}=="1", ATTR\{address\}=="?\*00:02:c9:03:00:31:78:f2", NAME="eth0"  
ACTION=="add", SUBSYSTEM=="net", DRIVERS=="?\*", ATTR\{type\}=="1", ATTR\{address\}=="?\*00:02:c9:03:00:31:78:f2", NAME="eth1"  
ACTION=="add", SUBSYSTEM=="net", DRIVERS=="?\*", ATTR\{type\}=="1", ATTR\{address\}=="?\*00:02:c9:03:00:31:78:f2", NAME="eth2"

注意MAC地址与NAME相匹配（可以用ip addr查看）

### 4、重启 ###

reboot

![70 6][]

[70]: https://image.dandelioncloud.cn/pgy_files/images/2024/01/29/4413ff1518ec4d668cd973563226c1ad.png
[70 1]: https://image.dandelioncloud.cn/pgy_files/images/2024/01/29/286dc8dc67884c978461631e45016976.png
[70 2]: https://image.dandelioncloud.cn/pgy_files/images/2024/01/29/6f72fca0b0ad4c40af73f1e981cdf88a.png
[70 3]: https://image.dandelioncloud.cn/pgy_files/images/2024/01/29/93149db04cf94a4ca0edbf14f70746ea.png
[70 4]: https://image.dandelioncloud.cn/pgy_files/images/2024/01/29/db76ab29f85a441baf1d0b507e8f9d25.png
[Link 1]: http://blog.csdn.net/henulwj/article/details/47061023
[70 5]: https://image.dandelioncloud.cn/pgy_files/images/2024/01/29/c2c9e99908b148e188d4e7995d1d2a9d.png
[70 6]: https://image.dandelioncloud.cn/pgy_files/images/2024/01/29/9ff89637fcf4464bbc7335961c15b7c9.png