Ubuntu plus expansion NIC encounters network card not recognized

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Today, when installing the expansion network card, there is a problem, Ubuntu and CentOS network configuration is not the same.

Ubuntu configuration: Auto eth0iface eth0 inet staticaddress 192.168.1.66 (note no equals) netmask 255.255.255.0 gateway 192.168.1.1 IF Adding an equal sign causes an error to appear: "Jobs failed to start" Centos Network configuration Auto eth0ipaddr=192.168.2.100 Letter capitalized with an equals sign Netmask=255.255.255.0gateway=1 92.168.2.1 ############################### #如果确定扩展添加的网卡是好的, plug the motherboard rear lights can still blink, but unrecognized: workaround cd/etc/udev/rule.d/use RM-RF Delete 70 Start with rule, restart, return to normal

Ubuntu plus expansion NIC encounters network card not recognized