ubuntu18.043399pro环境配置

出现如下错误:

Err:1 http://wiki.t-firefly.com/firefly-rk3399-repo bionic InRelease
  Could not resolve 'wiki.t-firefly.com'
Err:2 https://download.docker.com/linux/ubuntu bionic InRelease
  Could not resolve 'download.docker.com'
Err:3 http://mirrors.aliyun.com/ubuntu-ports bionic InRelease
  Could not resolve 'mirrors.aliyun.com'
Err:4 http://mirrors.aliyun.com/ubuntu-ports bionic-updates InRelease
  Could not resolve 'mirrors.aliyun.com'
Err:5 http://mirrors.aliyun.com/ubuntu-ports bionic-backports InRelease
  Could not resolve 'mirrors.aliyun.com'
Err:6 http://mirrors.aliyun.com/ubuntu-ports bionic-security InRelease
  Could not resolve 'mirrors.aliyun.com'
Reading package lists... Done
W: Failed to fetch http://mirrors.aliyun.com/ubuntu-ports/dists/bionic/InRelease  Could not resolve 'mirrors.aliyun.com'
W: Failed to fetch http://mirrors.aliyun.com/ubuntu-ports/dists/bionic-updates/InRelease  Could not resolve 'mirrors.aliyun.com'
W: Failed to fetch http://mirrors.aliyun.com/ubuntu-ports/dists/bionic-backports/InRelease  Could not resolve 'mirrors.aliyun.com'
W: Failed to fetch http://mirrors.aliyun.com/ubuntu-ports/dists/bionic-security/InRelease  Could not resolve 'mirrors.aliyun.com'
W: Failed to fetch https://download.docker.com/linux/ubuntu/dists/bionic/InRelease  Could not resolve 'download.docker.com'
W: Failed to fetch http://wiki.t-firefly.com/firefly-rk3399-repo/dists/bionic/InRelease  Could not resolve 'wiki.t-firefly.com'
W: Some index files failed to download. They have been ignored, or old ones used instead.

解决方法:设置妥当DNS服务器即可，如电信网络的设置如下所示

(参考:https://blog.csdn.net/npy_lp/article/details/42080553

https://blog.csdn.net/weixin_30449239/article/details/98918706)

$ sudo vi /etc/resolv.conf

 

 

 修改为114.114.114.114

添加:

cat /etc/resolv.conf
# Dynamic resolv.conf(5) file for glibc resolver(3) generated by resolvconf(8)
#     DO NOT EDIT THIS FILE BY HAND -- YOUR CHANGES WILL BE OVERWRITTEN

nameserver 8.8.8.8
nameserver 8.8.4.4

 

重启网络：

 

sudo /etc/init.d/networking restart

 

再执行命令:sudo apt-get update

 

执行完成,然后:

 

sudo apt-get upgrade