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一.故障现象: [root@c1node01 ~]# 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: [root@c1node01 ~]# rm -rf /etc/udev/rules.d/70-persistent-net.rules [root@c1node01 ~]# reboot ……………… Bringing up loopback insterface: [ OK ] Bringing up interface eth0:[ OK ] [root@c1node01 ~]# 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, 可删掉uuid、物理地址 三.比第一种更深入一点
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: [root@nodeA~]#servicenetworkrestart Shuttingdownloopbackinsterface:[OK] Bringinguploopbackinsterface:[OK] Bringingupinterfaceem1:Deviceem1doesnotseemtobepresent,delayinginitialization.[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: [root@nodeA~]#vi/etc/udev/rules.d/70-persistent-net.rules #Thisfilewasautomaticallygeneratedbythe/lib/udev/write_net_rules #program,runbythepersistent-net-generator.rulesrulesfile. # #Youcanmodifyit,aslongasyoukeepeachruleonasingle #line,andchangeonlythevalueoftheNAME=key. #PCIdevice0x14e4:0x163a(bnx2) SUBSYSTEM=="net",ACTION=="add",DRIVERS=="?*",ATTR{address}=="24:b6:fd:ab:76:1e",ATTR{type}=="1",KERNEL=="eth*",NAME="eth1" #PCIdevice0x14e4:0x163a(bnx2) SUBSYSTEM=="net",ATTR{address}=="24:b6:fd:ab:76:1c",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: ………… #PCIdevice0x14e4:0x163a(bnx2) SUBSYSTEM=="net",NAME="em2" #PCIdevice0x14e4:0x163a(bnx2) SUBSYSTEM=="net",NAME="em1" 保存退出~! [root@nodeA~]#reboot ……………… (编辑:鄂州站长网) 【声明】本站内容均来自网络,其相关言论仅代表作者个人观点,不代表本站立场。若无意侵犯到您的权利,请及时与联系站长删除相关内容! |