安装系统时候为防止后面克隆导致网卡MAC地址重复,安装系统的时候没有添加网卡,后面克隆完系统添加了网卡,通过setup发现找不到网卡,安装VMware tools后发现也还是一样,把VMXNET3换成E1000重启后发现还是认不出,怎么办?配置文件没找到我就创建了个,配置好IP、DNS,重启网卡提示以下错误:
Device eth0 does not seem to be present, delaying initialization.
这时候通过setup就可以找到网卡了,发现网卡、NDS那栏是空着的,我就又给填上,保存退出,重启网卡,提示如上错误,
网上查找资料后得知是MAC的问题,于是我又在配置文件里添加上对应的MAC地址
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HWADDR=00:0C:29:2C:E1:0F
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重启网卡,问题依然,然后我又删除/etc/udev/rules.d/70-persistent-net.rules文件,重启机器,系统在启动时会自动监测变化,然后由/lib/udev/write_net_rules写入到/etc/udev/rules.d/70-persistent-net.rules中,这时候我再重启网卡发现还是一样,于是查看了下
70-persistent-net.rules文件,发现ATTR{address}=="00:0C:29:2C:E1:0F"对应的NAME=eht1,于是又回到配置文件中将DEVICE修改成eth1,重启网卡正常启动
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[root@localhost ~]
# cat /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 0x8086:0x100f (e1000)
SUBSYSTEM==
"net"
, ACTION==
"add"
, DRIVERS==
"?*"
, ATTR{address}==
"00:50:56:be:47:37"
, ATTR{
type
}==
"1"
, KERNEL==
"eth*"
, NAME=
"eth0"
# PCI device 0x8086:0x100f (e1000)
SUBSYSTEM==
"net"
, ACTION==
"add"
, DRIVERS==
"?*"
, ATTR{address}==
"00:0C:29:2C:E1:0F"
, ATTR{
type
}==
"1"
, KERNEL==
"eth*"
, NAME=
"eth1"
[root@localhost ~]
#
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系统是VMware ESXI上的一台虚拟机原本为一个网卡,新加了一个网卡后死活起不来,报Device does not seem to be present, delaying initialization。也没有找到/etc/udev/rules.d/70-persistent-net.rules文件,可以通过ifconfig -a来查看,找到一个dev319的网卡,发现HWaddr就是添加的那块网卡的地址,于是就到配置文件里把DRIVERS=eth1修改成DRIVERS=dev319,把HWADDR修改成网卡的地址或者注释掉,重启网卡成功
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[root@mail rules.d]
# pwd
/etc/udev/rules
.d
[root@mail rules.d]
# ls
05-udev-early.rules 50-udev.rules 60-net.rules 90-dm.rules 95-pam-console.rules
40-multipath.rules 51-hotplug.rules 60-raw.rules 90-hal.rules
[root@mail network-scripts]
# ifconfig -a
dev319 Link encap:Ethernet HWaddr 00:50:5B:DB:28:2D
BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 b) TX bytes:0 (0.0 b)
Base address:0x2040 Memory:fd5a0000-fd5c0000
eth0 Link encap:Ethernet HWaddr 0D:5B:56:8B:0C:5C
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