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如何解決Linux操作系統找不到網卡的問題

來源:互聯網  2008-06-12 07:24:43  評論

1. 安裝網卡

機器太新,以至于現有的Linux版本無法認出,比如機器找不到網卡,這時候怎麽辦呢?

別急,首先你需要知道網卡是什麽型號的,以本實驗室新購入的電腦爲例,它的網卡是集成的,型號是Realtek RTL8168/8111 PCI-E Gigabit Ethernet NIC。然後我們到Realtek的官方網站去下載相應的Linux驅動程序r8168-8.005.00.tar.bz2,按照說明安裝。

Unpack the tarball :

# tar vjxf r8168-8.aaa.bb.tar.bz2

Change to the directory:

# cd r8168-8.aaa.bb

If you are running the target kernel, then you should be able to do :

# make clean modules (as root or with sudo)

# make install

# /sbin/depmod -a

# /sbin/insmod ./src/r8168.ko (or r8168.o in linux kernel 2.4.x)

You can check whether the driver is loaded by using following commands.

# /sbin/lsmod | grep r8168(看看有沒有加載網卡驅動)

# /sbin/ifconfig –a(看看有沒有相關網卡被啓動的信息)

If there is a device name, ethX, shown on the monitor, the linux

driver is loaded. Then, you can use the following command to activate

the ethX.

# ifconfig ethX up

,where X=0,1,2,...

這裏也可以通過系統→管理→網絡來設置IP地址等,最後激活。

1. Set manually

a. Set the IP address of your machine.

# ifconfig ethX "the IP address of your machine"

b. Set the IP address of DNS.

Insert the following configuration in /etc/resolv.conf.

nameserver "the IP address of DNS"

c. Set the IP address of gateway.

# route add default gw "the IP address of gateway"

2. Set by doing configurations in /etc/sysconfig/network-scripts

/ifcfg-ethX for Redhat and Fedora, or /etc/sysconfig/network

/ifcfg-ethX for SuSE. There are two examples to set network

configurations.

a. Fix IP address:

DEVICE=eth0

BOOTPROTO=static

ONBOOT=yes

TYPE=ethernet

NETMASK=255.255.255.0

IPADDR=192.168.1.1

GATEWAY=192.168.1.254

BROADCAST=192.168.1.255

2. 修改:#vi /etc/hosts,在該文本中,增加兩行:

127.0.0.1 localhost.localdomain localhost

192.168.4.101 node3(根據機器本身情況設置)

修改:vi /etc/hosts.equiv,增加一行:(如果沒有該文本,可建立一個)

node3

3. 啓動ssh服務

大部分的Linux版本應該都會自帶該程序

#ssh-keygen

#cd .ssh

#cp id_rsa.pub authorized_keys

#ssh node3(如果成功,會顯示上次登陸的時間, node3是主機名)

附加信息:

ifup eth0看看能否啓動eth0

lsmod看看有沒有加載網卡驅動

dmesg看看有沒有網卡啓動時的錯誤信息

1. 安裝網卡 機器太新,以至于現有的Linux版本無法認出,比如機器找不到網卡,這時候怎麽辦呢? 別急,首先你需要知道網卡是什麽型號的,以本實驗室新購入的電腦爲例,它的網卡是集成的,型號是Realtek RTL8168/8111 PCI-E Gigabit Ethernet NIC。然後我們到Realtek的官方網站去下載相應的Linux驅動程序r8168-8.005.00.tar.bz2,按照說明安裝。 Unpack the tarball : # tar vjxf r8168-8.aaa.bb.tar.bz2 Change to the directory: # cd r8168-8.aaa.bb If you are running the target kernel, then you should be able to do : # make clean modules (as root or with sudo) # make install # /sbin/depmod -a # /sbin/insmod ./src/r8168.ko (or r8168.o in linux kernel 2.4.x) You can check whether the driver is loaded by using following commands. # /sbin/lsmod | grep r8168(看看有沒有加載網卡驅動) # /sbin/ifconfig –a(看看有沒有相關網卡被啓動的信息) If there is a device name, ethX, shown on the monitor, the linux driver is loaded. Then, you can use the following command to activate the ethX. # ifconfig ethX up ,where X=0,1,2,... 這裏也可以通過系統→管理→網絡來設置IP地址等,最後激活。 1. Set manually a. Set the IP address of your machine. # ifconfig ethX "the IP address of your machine" b. Set the IP address of DNS. Insert the following configuration in /etc/resolv.conf. nameserver "the IP address of DNS" c. Set the IP address of gateway. # route add default gw "the IP address of gateway" 2. Set by doing configurations in /etc/sysconfig/network-scripts /ifcfg-ethX for Redhat and Fedora, or /etc/sysconfig/network /ifcfg-ethX for SuSE. There are two examples to set network configurations. a. Fix IP address: DEVICE=eth0 BOOTPROTO=static ONBOOT=yes TYPE=ethernet NETMASK=255.255.255.0 IPADDR=192.168.1.1 GATEWAY=192.168.1.254 BROADCAST=192.168.1.255 2. 修改:#vi /etc/hosts,在該文本中,增加兩行: 127.0.0.1 localhost.localdomain localhost 192.168.4.101 node3(根據機器本身情況設置) 修改:vi /etc/hosts.equiv,增加一行:(如果沒有該文本,可建立一個) node3 3. 啓動ssh服務 大部分的Linux版本應該都會自帶該程序 #ssh-keygen #cd .ssh #cp id_rsa.pub authorized_keys #ssh node3(如果成功,會顯示上次登陸的時間, node3是主機名) 附加信息: ifup eth0看看能否啓動eth0 lsmod看看有沒有加載網卡驅動 dmesg看看有沒有網卡啓動時的錯誤信息
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