烧写完最小linux系统提示这个是什么原因

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[    7.492672] android_work: sent uevent USB_STATE=DISCONNECTED

Try to bring eth0 interface up......grep: /etc/mtab: No such file or directory

ifconfig: SIOCGIFFLAGS: No such device

ifconfig: SIOCSIFHWADDR: No such device

ifconfig: SIOCSIFADDR: No such device

route: SIOCADDRT: No such process

Done

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