centos上设置网卡错误

来源：互联网发布：mac怎样快速回到桌面编辑：程序博客网时间：2024/04/30 10:16

今天把以前硬盘里存的centos放到公司的vmware上运行，发现网络起不来，提示错误是这样的：
device “eth2” does not seem to be present, delaying initialization
然后我看了

[def@localhost ~]$ cat /etc/sysconfig/network-scripts/ifcfg-eth2 DEVICE="eth2"BOOTPROTO=dhcp#HWADDR="00:0C:29:23:31:C2"#BROADCAST=192.168.101.255#IPADDR=192.168.101.31#NETMASK=255.255.255.0#GATEWAY=192.168.101.1ONBOOT=yes

解决方法1：
通过ip add命令查看当前的网卡名

[def@localhost ~]$ ip add1: lo: <LOOPBACK,UP,LOWER_UP> mtu 16436 qdisc noqueue state UNKNOWN     link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00    inet 127.0.0.1/8 scope host lo    inet6 ::1/128 scope host        valid_lft forever preferred_lft forever2: eth4: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UNKNOWN qlen 1000    link/ether 00:0c:29:cb:5b:58 brd ff:ff:ff:ff:ff:ff    inet 192.168.11.131/24 brd 192.168.11.255 scope global eth4    inet6 fe80::20c:29ff:fecb:5b58/64 scope link        valid_lft forever preferred_lft forever3: virbr0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UNKNOWN     link/ether 52:54:00:65:c3:1e brd ff:ff:ff:ff:ff:ff    inet 192.168.122.1/24 brd 192.168.122.255 scope global virbr04: virbr0-nic: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN qlen 500    link/ether 52:54:00:65:c3:1e brd ff:ff:ff:ff:ff:ff[def@localhost ~]$

从上面可以看出是eth4，然后修改上面的ifcfg-eth2文件，将eth2修改为eth4即可。

解决方法2：
修改udev记录的mac与网卡名称对应规则：

cat /etc/udev/rules.d/70-persistent-net.rules # PCI device 0x1022:0x2000 (pcnet32)SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="00:0c:29:cb:5b:58",

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