ubuntu 开机不自动连接wifi问题

1. /etc/NetworkManager/NetworkManager.conf

[main]

plugins=ifupdown,keyfile,ofono

dns=dnsmasq

no-auto-default=B8:70:F4:2C:62:DB,

[ifupdown]

managed=true

​

2.  /etc/network/interfaces  

只保留一下两行内容:

auto lo

iface lo inet loopback

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后来出现wifi和有线网络切换的问题,将/etc/network/interfaces  的内容全部注释掉了.