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cndaqiang / E5-PC-daily

服务器集群管理遇到的问题和总结
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NAS-Centos Error #7

Open cndaqiang opened 5 years ago

cndaqiang commented 5 years ago

备份系统

dd if=/dev/sdc of=/home/data/dell1t/OSBack/sdc.20190918

cndaqiang commented 5 years ago

无线网卡

Centos安装完还不大行

检测网卡

centos 6.5 使用lsusb 和lspci 安装

yum -y install usbutils
[root@boy cndaqiang]# lsusb
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 001 Device 002: ID 0781:5583 SanDisk Corp. Ultra Fit
Bus 001 Device 003: ID 0bda:8179 Realtek Semiconductor Corp. RTL8188EUS 802.11n Wireless Network Adapter

检测网卡

[root@boy cndaqiang]# yum install -y wireless-tools
[root@boy cndaqiang]# iwconfig
lo        no wireless extensions.
eth0      no wireless extensions.
eth1      no wireless extensions.

没找到，需要安装驱动

安装/编译 驱动

CentOS安装RTL8188CE无线网卡驱动 How to enable Realtek 8188ee driver on CentOS 6.7? make fails for rtl8188eu wifi driver 根据lsusb的结果，驱动为RTL8188EUS

yum -y install  pciutils make gcc gcc-c++ kernel-devel
git clonehttps://github.com/cndaqiang/rtl8188eu.git
cd rtl8188eu/
make
make install
#不用重启，USB网卡拔下来重插即可检测到
[root@boy rtl8188eu]# iwconfig
lo        no wireless extensions.
eth0      no wireless extensions.
eth1      no wireless extensions.
wlan0     unassociated  ESSID:""  Nickname:"<WIFI@REALTEK>"
          Mode:Auto  Frequency=2.412 GHz  Access Point: Not-Associated   
          Sensitivity:0/0  
          Retry:off   RTS thr:off   Fragment thr:off
          Encryption key:off
          Power Management:off
          Link Quality=0/100  Signal level=0 dBm  Noise level=0 dBm
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:0  Invalid misc:0   Missed beacon:0

make时如报错/lib/modules/2.6.32-754.el6.i686/build: No such file or directory. Stop. 解决方案

# make
make: *** /lib/modules/2.6.32-754.el6.i686/build: No such file or directory.  Stop.
make: *** [all] Error 2
#是/lib/modules/2.6.32-754.el6.i686/build的软连接失败了
[root@boy rtl8192ce_linux_2.6.0006.0321.2011]# cd /lib/modules/2.6.32-754.el6.i686
[root@boy 2.6.32-754.el6.i686]# ls ../../../usr/src/kernels/
2.6.32-754.14.2.el6.i686  2.6.32-754.22.1.el6.i686
[root@boy 2.6.32-754.el6.i686]# rm build
rm: remove symbolic link `build'? y
[root@boy 2.6.32-754.el6.i686]# ln -s ../../../usr/src/kernels/2.6.32-754.22.1.el6.i686 build
[root@boy 2.6.32-754.el6.i686]# ll build
lrwxrwxrwx 1 root root 49 Sep 18 09:59 build -> ../../../usr/src/kernels/2.6.32-754.22.1.el6.i686
#可以编译了