windows 10可以正常上网。
驱动也装了，就是在ifconfig里面没有etho。

root@xuuke-Ubuntu:/etc# lspci
00:00.0 Host bridge: Intel Corporation 4th Gen Core Processor DRAM Controller (rev 06)
00:01.0 PCI bridge: Intel Corporation Xeon E3-1200 v3/4th Gen Core Processor PCI Express x16 Controller (rev 06)
00:14.0 USB controller: Intel Corporation 8 Series/C220 Series Chipset Family USB xHCI (rev 04)
00:16.0 Communication controller: Intel Corporation 8 Series/C220 Series Chipset Family MEI Controller #1 (rev 04)
00:19.0 Ethernet controller: Intel Corporation Ethernet Connection I217-LM (rev 04)
00:1a.0 USB controller: Intel Corporation 8 Series/C220 Series Chipset Family USB EHCI #2 (rev 04)
00:1b.0 Audio device: Intel Corporation 8 Series/C220 Series Chipset High Definition Audio Controller (rev 04)
00:1c.0 PCI bridge: Intel Corporation 8 Series/C220 Series Chipset Family PCI Express Root Port #1 (rev d4)
00:1c.1 PCI bridge: Intel Corporation 8 Series/C220 Series Chipset Family PCI Express Root Port #2 (rev d4)
00:1d.0 USB controller: Intel Corporation 8 Series/C220 Series Chipset Family USB EHCI #1 (rev 04)
00:1f.0 ISA bridge: Intel Corporation Q87 Express LPC Controller (rev 04)
00:1f.2 RAID bus controller: Intel Corporation SATA Controller [RAID mode] (rev 04)
00:1f.3 SMBus: Intel Corporation 8 Series/C220 Series Chipset Family SMBus Controller (rev 04)
01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Oland [Radeon HD 8570 / R7 240/340 OEM]
01:00.1 Audio device: Advanced Micro Devices, Inc. [AMD/ATI] Cape Verde/Pitcairn HDMI Audio [Radeon HD 7700/7800 Series]
03:00.0 PCI bridge: Texas Instruments XIO2001 PCI Express-to-PCI Bridge

root@xuuke-Ubuntu:/etc# ifconfig -a
eno1 Link encap:Ethernet HWaddr 64:00:6a:72:24:78
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:465 errors:0 dropped:0 overruns:0 frame:0
TX packets:342 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:66498 (66.4 KB) TX bytes:57353 (57.3 KB)
Interrupt:20 Memory:f7f00000-f7f20000

lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:65536 Metric:1
RX packets:5284 errors:0 dropped:0 overruns:0 frame:0
TX packets:5284 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1
RX bytes:390960 (390.9 KB) TX bytes:390960 (390.9 KB)

00:19.0 Ethernet controller: Intel Corporation Ethernet Connection I217-LM (rev 04)

eth0已经是历史了，现在因为systemd的原因，用的是新名字，比方你的这个，貌似叫eno1

感谢，请问你知道该如何设置才能上网吗？

可能原因 双系统驱动设置相互影响
尝试关闭主板的网络唤醒功能 (WoL, Wake-on-LAN)，需要在 BIOS 和 Windows 驱动中都设置关闭。

参考
viewtopic.php?f=116&t=473460
viewtopic.php?f=116&t=473485

感谢指导。
确实是Windows和Ubuntu对网卡的设置冲突了。我之前的BCD引导是先进入Windows的metro界面再进入Ubuntu，后来改成在Windows外引导进入Ubuntu就行了。BIOS里面瞎改了一气，不过好像还原了。

如果已经进入Windows，想切换到Ubuntu的话，要完全关机后再开启才行，而选择重启进入Ubuntu也是不能上网的。
另外相反的情况下在Ubuntu点击重启然后进入Windows是可以上网的。是不是Windows具有自动再设置网卡的功能吧或者兼容了Ubuntu的设置之类的。