从14.04升级后不能联网了
换回kernel 3.13能联网kernel 4.4不行
dmesg | grep iwl
[ 30.661052] iwlwifi 0000:04:00.0: PCI->APIC IRQ transform: INT A -> IRQ 17
[ 30.661128] iwlwifi 0000:04:00.0: can't ioremap BAR 0: [??? 0x00000000 flags 0x0]
[ 30.661130] iwlwifi 0000:04:00.0: pci_ioremap_bar failed

kernel 4.4

*-network UNCLAIMED
description: Network controller
product: Centrino Wireless-N 1000 [Condor Peak]
vendor: Intel Corporation
physical id: 0
bus info: pci@0000:04:00.0
version: 00
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress cap_list
configuration: latency=0
*-network UNCLAIMED
description: Ethernet controller
product: AR8152 v1.1 Fast Ethernet
vendor: Qualcomm Atheros
physical id: 0
bus info: pci@0000:05:00.0
version: c1
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress vpd cap_list
configuration: latency=0

尝试换用其它版本内核 如 Linux 4.7 (从 http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.7.2/ 下载)
或使用 Ubuntu 16.04 LiveCD/LiveUSB 测试。若正常，考虑备份文件后全新安装 16.04

兩者都沒有作用中的驅動 ?
兩者的 physical id 都是 0 ?

沒有載入合適的驅動模組 應該是主要原因

使用内核4.7依然不行，用内核3.13了

驱动都有，用内核3.13是正常的

可以把 内核 3.13 的
sudo lshw -numeric -class network
回應內容複製貼上來

*-network
description: Wireless interface
product: Centrino Wireless-N 1000 [Condor Peak] [8086:83]
vendor: Intel Corporation [8086]
physical id: 0
bus info: pci@0000:04:00.0
logical name: wlan0
version: 00
serial: 8c:a9:82:1e:7b:d2
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
configuration: broadcast=yes driver=iwlwifi driverversion=3.13.0-92-generic firmware=39.31.5.1 build 35138 ip=192.168.1.105 latency=0 link=yes multicast=yes wireless=IEEE 802.11bgn
resources: irq:47 memory:f0300000-f0301fff
*-network
description: Ethernet interface
product: AR8152 v1.1 Fast Ethernet [1969:2060]
vendor: Qualcomm Atheros [1969]
physical id: 0
bus info: pci@0000:05:00.0
logical name: eth0
version: c1
serial: 14:fe:b5:9d:3a:55
capacity: 100Mbit/s
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress vpd bus_master cap_list ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd autonegotiation
configuration: autonegotiation=on broadcast=yes driver=atl1c driverversion=1.0.1.1-NAPI latency=0 link=no multicast=yes port=twisted pair
resources: irq:50 memory:f0200000-f023ffff ioport:3000(size=128)

一个相似案例 http://www.spinics.net/lists/linux-pci/msg27017.html
最终结果为不了了之

測試
1. 先把無線網卡 從 Bios 關閉 （或拔除)
測試看看
product: AR8152 v1.1 Fast Ethernet
行不行

2. 再把有線網卡 從 Bios 關閉 （或拔除)
測試看看
product: Centrino Wireless-N 1000 [Condor Peak]
行不行

3. 這樣可以鎖定有問題的網卡驅動 來解決

关闭测试，问题依旧。。。

分開 有線網卡 及 無線網卡 關閉
測試 問題還依舊嗎

那 可能不完全是 網卡驅動的問題

分别关闭，并且在3.13和4.7里分别试，现象和之前是一样的

0. 先把無線網卡關閉 測試有線網卡 自己編譯/安裝驅動


1. https://wiki.linuxfoundation.org/networking/alx
atl1c provides support for these chipsets:
1969:2060 - AR8152 v1.1 Fast Ethernet

1-1. https://wiki.linuxfoundation.org/networking/alx
Code
For more details refer to the compat-drivers documentation.
https://backports.wiki.kernel.org/

1-2. https://backports.wiki.kernel.org/index.php/Main_Page
The project started since 2007 and was originally known as compat-wireless, evolved to compat-drivers and was recently renamed simply to backports.

1-3. 最近的穩定版
http://drvbp1.linux-foundation.org/~mcg ... backports/
http://www.kernel.org/pub/linux/kernel/ ... 6-1.tar.xz
http://www.kernel.org/pub/linux/kernel/ ... 1.tar.sign

1-4. 2016 最新版
https://www.kernel.org/pub/linux/kernel ... orts/2016/

1-5. 每日更新版
http://git.kernel.org/cgit/linux/kernel ... x-next.git

1-6. 安裝方法
https://wiki.linuxfoundation.org/networking/alx
Install
To only compile and install the alx driver you can do:
./scripts/driver-select alx （或 atl1c）
make
sudo make install

2. 安裝後 重開機 如果滿意
可以把
2-1. uname -r
2-2. sudo lshw -numeric -class network
的回應內容複製貼上來

make时报警：compat-drivers by default supports kernels >= 2.6.24, try enabling only one driver though