1.查看IP地址

[root@localhost ~]# ip a
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN 
    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: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 1000
    link/ether 00:0c:29:20:53:b3 brd ff:ff:ff:ff:ff:ff
    inet 192.168.1.102/24 brd 192.168.1.255 scope global dynamic eno16777736
       valid_lft 6568sec preferred_lft 6568sec
    inet6 fe80::20c:29ff:fe20:53b3/64 scope link 
       valid_lft forever preferred_lft forever
3: eno33554976: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 1000
    link/ether 00:0c:29:20:53:bd brd ff:ff:ff:ff:ff:ff
    inet 192.168.1.113/24 brd 192.168.1.255 scope global dynamic eno33554976
       valid_lft 6569sec preferred_lft 6569sec
    inet6 fe80::20c:29ff:fe20:53bd/64 scope link 
       valid_lft forever preferred_lft forever

2.修改grub文件，在该文件中添加红色字体的一部分

[root@localhost ~]# vim /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="rd.lvm.lv=VG00/swap vconsole.font=latarcyrheb-sun16 crashkernel=auto  vconsole.keymap=us rd.lvm.lv=VG00/root rhgb quiet net.ifnames=0 biosdevname=0"
GRUB_DISABLE_RECOVERY="true"

3. 构建新的img文件

[root@localhost ~]# grub2-mkconfig -o /boot/grub2/grub.cfg
Generating grub configuration file ...
Found linux image: /boot/vmlinuz-3.10.0-229.7.2.el7.x86_64
Found initrd image: /boot/initramfs-3.10.0-229.7.2.el7.x86_64.img
Found linux image: /boot/vmlinuz-3.10.0-229.4.2.el7.x86_64
Found initrd image: /boot/initramfs-3.10.0-229.4.2.el7.x86_64.img
Found linux image: /boot/vmlinuz-3.10.0-229.1.2.el7.x86_64
Found initrd image: /boot/initramfs-3.10.0-229.1.2.el7.x86_64.img
Found linux image: /boot/vmlinuz-3.10.0-123.el7.x86_64
Found initrd image: /boot/initramfs-3.10.0-123.el7.x86_64.img
Found linux image: /boot/vmlinuz-3.10.0-123.13.2.el7.x86_64
Found initrd image: /boot/initramfs-3.10.0-123.13.2.el7.x86_64.img
Found linux image: /boot/vmlinuz-0-rescue-f16a3c5e4d1949dd87cf7fdc31231925
Found initrd image: /boot/initramfs-0-rescue-f16a3c5e4d1949dd87cf7fdc31231925.img
done

4.重新启动服务器

[root@localhost ~]# reboot

5.重新查看服务器的IP地址

[root@localhost ~]# ip a
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN 
    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: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 1000
    link/ether 00:0c:29:20:53:b3 brd ff:ff:ff:ff:ff:ff
    inet 192.168.1.102/24 brd 192.168.1.255 scope global dynamic eth0
       valid_lft 7150sec preferred_lft 7150sec
    inet6 fe80::20c:29ff:fe20:53b3/64 scope link 
       valid_lft forever preferred_lft forever
3: eth1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 1000
    link/ether 00:0c:29:20:53:bd brd ff:ff:ff:ff:ff:ff
    inet 192.168.1.113/24 brd 192.168.1.255 scope global dynamic eth1
       valid_lft 7150sec preferred_lft 7150sec
    inet6 fe80::20c:29ff:fe20:53bd/64 scope link