有线网络Ubuntu 17.04
我刚刚从Ubuntu 16.04升级到16.10再升级到17.04，并且在此过程中丢失了有线网络。 升级前4小时前很好。 我可以连接到WiFi，但以太网网络在我的网络管理菜单中显示为灰色。 这是ifconfig -a的输出
ifconfig -a eth0: flags=4098 mtu 1500 ether e8:40:f2:81:23:fa txqueuelen 1000 (Ethernet) 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 lo: flags=73 mtu 65536 inet 127.0.0.1 netmask 255.0.0.0 inet6 ::1 prefixlen 128 scopeid 0x10 loop txqueuelen 1000 (Local Loopback) RX packets 479 bytes 114309 (114.3 KB) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 479 bytes 114309 (114.3 KB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 wlan0: flags=4163 mtu 1500 inet 192.168.1.7 netmask 255.255.255.0 broadcast 192.168.1.255 inet6 fe80::367c:5f4:624a:57f5 prefixlen 64 scopeid 0x20 ether 9c:b7:0d:e0:54:b6 txqueuelen 1000 (Ethernet) RX packets 18802 bytes 13005919 (13.0 MB) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 19310 bytes 4364068 (4.3 MB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 如果，如本网站https://help.ubuntu.com/stable/ubuntu-help/net-wired-connect.html所述，我需要手动设置我的IPV4，在哪里可以找到要使用的值？
编辑文件/usr/lib/NetworkManager/conf.d/10-globally-managed-devices.conf并从以下位置更改其内容：
[keyfile] unmanaged-devices=*,except:type:wifi,except:type:wwan
至 ：
[keyfile] unmanaged-devices=*,except:type:ethernet,except:type:wifi,except:type:wwan
然后运行：
sudo service network-manager restart
这里完全相同的问题。 解决了创建一个空文件：
sudo touch /etc/NetworkManager/conf.d/10-globally-managed-devices.conf sudo service network-manager restart
GR