树莓派装Ubuntu后WiFI显示无WIFI问题

初步配置完成，SSH完成基本操作后，树莓派的设置中WIFI那里会显示没有WIFI配置，这是因为在配置后会将这个功能取消掉，需要去改回来。

#输入如下命令
cd /etc/netplan/
#输入ls,会发现有这个文件
50-cloud-init.yaml
 
sudo gedit 50-cloud-init.yaml

没有安装gedit:sudo apt install gedit
 
出现如下页面
# This file is generated from information provided by the datasource.  Changes
# to it will not persist across an instance reboot.  To disable cloud-init's
# network configuration capabilities, write a file
# /etc/cloud/cloud.cfg.d/99-disable-network-config.cfg with the following:
network: {config:disabled}
network:
  version: 2
    wifis:
        renderer: networkd
        wlan0:
            access-points:
                opoo for test:
                    password: 7a5fb286602b87d053d41beb30c525309265f03509c5952ab5e79e9d44156d86
            dhcp4: true
            optional: true
~
~
~
其中 opoo for test是我预先配置好的wifi,但是你可以发现，上面有行代码是这样子的
network: {config:disabled}
这就是导致我们看不到其他WIFI的罪魁祸首，我在这里先把自己配置好的WIFI注释掉，然后将其改为able
network: {config:able}
#network:
#    version: 2
#    wifis:
#        renderer: networkd
#        wlan0:
#            access-points:
#                opoo for test:
#                    password: 7a5fb286602b87d053d41beb30c525309265f03509c5952ab5e79e9d44156d86
#            dhcp4: true
#            optional: true

保存，重启

就能看到wifi了