沒事折騰了一下雙系統,在Windows7之外又裝了個CentOS 6.5,裝完之後發現沒有無線網卡驅動,不能連WIFI。於是裝驅動又折騰了好幾個小時。。。這裏記錄一下
1、查看本機的驅動信息
使用iwconfig
發現本機沒有無線網卡驅動:
[root@songlee-PC ~]# iwconfig
lo no wireless extensions.
eth0 no wireless extensions.
並沒有,好吧自己裝!先看下無線網卡是什麼型號的:
[root@songlee-PC ~]# lspci | grep Network
07:00.0 Network controller: Broadcom Corporation BCM43142 802.11b/g/n (rev 01)
無線網卡型號爲BCM43142 802.11
2、去Broadcom官網下載驅動安裝包
這裏下載的是64位版本:hybrid-v35_64-nodebug-pcoem-6_30_223_271.tar.gz
3、安裝內核開發包及GCC
編譯broadcom無線驅動需要安裝 kernel-headers、kerner-devel以及gcc
但是要注意的是:kernel-headers、kerner-devel一定要與內核版本一致,不然編譯出來的驅動無法運行。
先查看一下當前的內核版本:
[root@songlee-PC ~]# uname -r
2.6.32-431.el6.x86_64
然後看是否能夠直接通過yum安裝:
[root@songlee-PC ~]# yum list | grep -E "kernel-headers|kernel-devel"
kernel-devel.x86_64 2.6.32-696.3.2.el6 updates
kernel-headers.x86_64 2.6.32-696.3.2.el6 updates
發現yum的版本與內核版本不一致!!
沒辦法,只能手動從CentOS Vault下載rpm進行安裝了:
CentOS-7:請在 7.N.YYMM/os/x86_64/Packages/ 或 7.N.YYMM/updates/x86_64/Packages/ 目錄內找尋 kernel-devel-版本.x86_64.rpm
CentOS-6:請在 6.N/os/arch/Packages/ 或 6.N/updates/arch/Packages/ 目錄內找尋 kernel-devel-版本.結構.rpm
這裏根據內核版本下載了下面兩個安裝包:
$ wget http://vault.centos.org/6.5/updates/x86_64/Packages/kernel-headers-2.6.32-431.1.2.0.1.el6.x86_64.rpm
$ wget http://vault.centos.org/6.5/updates/x86_64/Packages/kernel-devel-2.6.32-431.1.2.0.1.el6.x86_64.rpm
$ rpm -ivh /tmp/kernel-headers-2.6.32-431.1.2.0.1.el6.x86_64.rpm
$ rpm -ivh /tmp/kernel-devel-2.6.32-431.1.2.0.1.el6.x86_64.rpm
$ yum install gcc
4、解壓並編譯無線網卡驅動
隨便找一個目錄,解壓並編譯:
[root@songlee-PC hybrid-wl]# tar xzf hybrid-v35_64-nodebug-pcoem-6_30_223_271.tar.gz
[root@songlee-PC hybrid-wl]# ll
總用量 16
drwxrwxrwx. 2 52258 users 4096 9月 18 2015 lib
-rw-rw-rw-. 1 52258 users 5154 9月 18 2015 Makefile
drwxrwxrwx. 6 52258 users 4096 9月 18 2015 src
[root@songlee-PC hybrid-wl]# make API=WEXT
KBUILD_NOPEDANTIC=1 make -C /lib/modules/`uname -r`/build M=`pwd`
make: *** /lib/modules/2.6.32-431.el6.x86_64/build: 沒有那個文件或目錄。 停止。
make: *** [all] 錯誤
嘗試編譯發現報錯了。因爲/lib/modules/2.6.32-431.el6.x86_64/
目錄下的 build 軟鏈接有問題:
OK,那就手動創建:
[root@songlee-PC hybrid-wl]# cd /lib/modules/2.6.32-431.el6.x86_64/
[root@songlee-PC 2.6.32-431.el6.x86_64]# rm -f build
[root@songlee-PC 2.6.32-431.el6.x86_64]# ln -s ../../../usr/src/kernels/2.6.32-431.1.2.0.1.el6.x86_64 build
然後進入原來的解壓目錄使用make API=WEXT
命令再次進行編譯:
[root@songlee-PC hybrid-wl]# make API=WEXT
KBUILD_NOPEDANTIC=1 make -C /lib/modules/`uname -r`/build M=`pwd`
make[1]: Entering directory `/usr/src/kernels/2.6.32-431.1.2.0.1.el6.x86_64'
Wireless Extension API specified in command line
Using Wireless Extension API
LD /usr/local/src/hybrid-wl/built-in.o
CC [M] /usr/local/src/hybrid-wl/src/shared/linux_osl.o
CC [M] /usr/local/src/hybrid-wl/src/wl/sys/wl_linux.o
CC [M] /usr/local/src/hybrid-wl/src/wl/sys/wl_iw.o
CC [M] /usr/local/src/hybrid-wl/src/wl/sys/wl_cfg80211_hybrid.o
LD [M] /usr/local/src/hybrid-wl/wl.o
Building modules, stage 2.
Wireless Extension API specified in command line
Using Wireless Extension API
MODPOST 1 modules
CC /usr/local/src/hybrid-wl/wl.mod.o
LD [M] /usr/local/src/hybrid-wl/wl.ko.unsigned
NO SIGN [M] /usr/local/src/hybrid-wl/wl.ko
make[1]: Leaving directory `/usr/src/kernels/2.6.32-431.1.2.0.1.el6.x86_64'
[root@songlee-PC hybrid-wl]# make install
install -D -m 755 wl.ko /lib/modules/`uname -r`/kernel/drivers/net/wireless
make install
命令用於將編譯生成的wl.ko
文件拷貝到/lib/modules/2.6.32-431.el6.x86_64/kernel/drivers/net/wireless
目錄中。
5、加載新的驅動
如果已經有正在運行的默認驅動,需要先卸載並加入黑名單:
$ lsmod | grep -E "b43|ssb|bcma"
$ rmmod b43
$ rmmod ssb
$ rmmod bcma
然後在 /etc/modprobe.d/blacklist.conf 中加入以下幾行:
blacklist b43
blacklist ssb
blacklist bcma
加載新的無線驅動程序:
$ modprobe cfg80211
$ modprobe lib80211
$ insmod wl.ko (或者modprobe wl)
然後重啓網絡服務:
$ service network restart
正在關閉接口 eth0: 設備狀態:3 (斷開連接)
[確定]
關閉環回接口: [確定]
彈出環回接口: [確定]
用iwconfig
看一下:
[root@songlee-PC ~]# iwconfig
lo no wireless extensions.
eth0 no wireless extensions.
eth1 IEEE 802.11 ESSID:"" Nickname:""
Mode:Managed Frequency:2.412 GHz Access Point: Not-Associated
Bit Rate:72 Mb/s Tx-Power:24 dBm
Retry min limit:7 RTS thr:off Fragment thr:off
Power Managementmode:All packets received
Link Quality=5/5 Signal level=0 dBm Noise level=-31 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:0 Missed beacon:0
OK,可以檢測到無線網了!!!
踩坑:
一開始我直接使用yum安裝的 kernel-headers、kerner-devel,並沒有注意到這兩個軟件包的版本與內核版本不一致。編譯出wl.ko
文件以後,嘗試加載的時候報錯了:
[root@songlee-PC wireless]# insmod wl.ko
insmod: error inserting 'wl.ko': -1 Unknown symbol in module
查看dmesg
:
wl: disagrees about version of symbol wireless_send_event
wl: Unknown symbol wireless_send_event
wl: disagrees about version of symbol wireless_send_event
wl: Unknown symbol wireless_send_event
wl: disagrees about version of symbol wireless_send_event
wl: Unknown symbol wireless_send_event
wl: disagrees about version of symbol wireless_send_event
wl: Unknown symbol wireless_send_event
Google一下了解到可能是編譯用的kernel-headers、kerner-devel版本與內核版本不一致,於是卸載了通過yum安裝的版本,手動安裝了2.6.32-431版本就OK了