Device eth0 does not seem to be present,delaying initialization. 虚拟机克隆后出现网卡起不来

Posted

tags:

篇首语:本文由小常识网(cha138.com)小编为大家整理,主要介绍了Device eth0 does not seem to be present,delaying initialization. 虚拟机克隆后出现网卡起不来相关的知识,希望对你有一定的参考价值。

一.故障现象:

[[email protected] ~]# service network restart

Shutting down loopback insterface:                                                       [   OK  ]

Bringing up loopback insterface:                                                            [   OK  ]

Bringing up interface eth0:  Device eth0 does not seem to be present,delaying initialization.                    [FAILED]

 

解决办法:

[[email protected] ~]# rm -rf /etc/udev/rules.d/70-persistent-net.rules

[[email protected] ~]# reboot ………………

[[email protected] ~]# service network restart

Shutting down loopback insterface:                                                         [   OK   ]

Bringing up loopback insterface:                                                              [   OK   ]

Bringing up interface eth0:                                                                     [   OK   ]

[[email protected] ~]#

 

二.另一种方法

造成这样的原因,是因为在虚拟机(Vmware)中移动了Centos系统对应的文件,导致重新配置时,网卡的MAC地址变了,输入ifconfig -a,找不到eth0

·······

 

安装完一个centos虚拟机,又拷贝一份,开机后网卡无法正常启动,报错:Device eth0 does not seem to be present, 
delaying initialization

解决:# mv /etc/sysconfig/network-scripts/ifcfg-eth0 
sysconfig/network-scripts/ifcfg-eth1

vim 
sysconfig/network-scripts/ifcfg-eth1

修改DEVICE="eth0" 
为DEVICE="eth1"


可删掉uuid、物理地址

然后重启启动网卡尝试下

 

三.比第一种更深入一点

 

 

故障前的操作:

DELL刀片装的是CentOS6.3的操作系统,网卡识别的是em1和em2,由于工作需要做了槽位调整,并启动了刀片

 

故障现象:

启动后网络不通,通过iDRAC登录后route查看缺省路由正常;

重启网络服务:

[[email protected] ~]# service network restart Shutting down loopback insterface: [ OK ] Bringing up loopback insterface: [ OK ] Bringing up interface em1: Device em1 does not seem to be present,delaying initialization. [FAILED]

 

分析问题和解决:

之前在别的文章中我们提过70-persistent-net.rules文件,所以看了一下:

[[email protected] ~]# vi /etc/udev/rules.d/70-persistent-net.rules

# This file was automatically generated by the /lib/udev/write_net_rules # program, run by the persistent-net-generator.rules rules file. # # You can modify it, as long as you keep each rule on a single # line, and change only the value of the NAME= key.

# PCI device 0x14e4:0x163a (bnx2) SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="24:b6:fd:ab:76:1e", ATTR{type}=="1", KERNEL=="eth*", NAME="eth1"

# PCI device 0x14e4:0x163a (bnx2) SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="24:b6:fd:ab:76:1c", ATTR{type}=="1", KERNEL=="eth*", NAME="eth0"

发现NAME的名称不正确,依次将上述红色字体中的eth0改为em1,eth1改为em2;

*切记:网卡编号由MAC地址大小决定,MAC越小网卡编号越小;

如下:

…………

# PCI device 0x14e4:0x163a (bnx2)

SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="24:b6:fd:ab:76:1e", ATTR{type}=="1", KERNEL=="eth*", NAME="em2"

# PCI device 0x14e4:0x163a (bnx2) SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="24:b6:fd:ab:76:1c", ATTR{type}=="1", KERNEL=="eth*", NAME="em1"

保存退出~!

[[email protected] ~]#reboot

………………

问题解决~!


本文出自 “目标:印度” 博客,请务必保留此出处http://shunzi115.blog.51cto.com/5184443/1870018

以上是关于Device eth0 does not seem to be present,delaying initialization. 虚拟机克隆后出现网卡起不来的主要内容,如果未能解决你的问题,请参考以下文章

Bringing up interface eth0: Device eth0 does not seem to be present, delaying initialization.

Linux解决Device eth0 does not seem to be present

device eth0 does not seem to be present, delaying initialization

CentOS Linux解决Device eth0 does not seem to be present

Centos 配置eth0 提示Device does not seem to be present

Centos 配置eth0 提示Device does not seem to be present