一段輝煌的回憶，一個冬日的故事

$ ip a

1: lo: <loopback,up,lower_up> mtu 65536 qdisc noqueue state UNKNOWN group default 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: </loopback,up,lower_up>ens33: <broadcast,multicast,up,lower_up> mtu 1500 qdisc pfifo_fast state UP group default qlen 1000
    link/ether 00:0c:29:05:a3:e2 brd ff:ff:ff:ff:ff:ff
    </broadcast,multicast,up,lower_up>inet 192.168.12.12/24 brd 192.168.12.255 scope global dynamic ens33
       valid_lft 1683sec preferred_lft 1683sec
    inet6 fe80::20c:29ff:fe05:a3e2/64 scope link
       valid_lft forever preferred_lft forever

上述可以看到網卡名稱不是過去舊版的eth系列名稱，為了自己習慣，所以打算改成自己16.04以前的網卡名稱

1. 編輯開機檔

$ sudo nano /etc/default/grub

2. 修改內部參數 : GRUB_CMDLINE_LINUX

From :

GRUB_CMDLINE_LINUX=""

To :

GRUB_CMDLINE_LINUX="net.ifnames=0 biosdevname=0"

3. 修改完後重新產生grub的開機檔

$ sudo grub-mkconfig -o /boot/grub/grub.cfg

Generating grub configuration file ...
Warning: Setting GRUB_TIMEOUT to a non-zero value when GRUB_HIDDEN_TIMEOUT is set is no longer supported.
Found linux image: /boot/vmlinuz-4.4.0-15-generic
Found initrd image: /boot/initrd.img-4.4.0-15-generic
Found memtest86+ image: /memtest86+.elf
Found memtest86+ image: /memtest86+.bin
done

4. 重開機

$ sudo reboot

5. 查看修改結果

$ ip a
1: lo: <loopback,up,lower_up> mtu 65536 qdisc noqueue state UNKNOWN group default 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: </loopback,up,lower_up>eth0: <broadcast,multicast,up,lower_up> mtu 1500 qdisc pfifo_fast state UP group default qlen 1000
    link/ether 00:0c:29:05:a3:e2 brd ff:ff:ff:ff:ff:ff
    </broadcast,multicast,up,lower_up>inet 192.168.12.12/24 brd 192.168.12.255 scope global eth0
       valid_lft forever preferred_lft forever
    inet6 fe80::20c:29ff:fe05:a3e2/64 scope link
       valid_lft forever preferred_lft forever

參考資料 : https://www.itzgeek.com/how-tos/mini-howtos/change-default-network-name-ens33-to-old-eth0-on-ubuntu-16-04.html