Ubuntu18.04 新系统基础开发软件

图形模式切换到命令模式

关掉sudo密码

apt-get 源切换

基础软件安装

关闭自动更新

忘记密码

图形模式切换到命令模式

命令模式 ：Ctrl+Alt+F5 | init 3

图形模式：Ctrl+Alt+F1 | inti 5

关掉sudo密码

%sudo ALL=(ALL:ALL) NOPASSWD:ALL

apt-get 源切换

  1. [备份原有配置文件] sudo cp /etc/apt/sources.list /etc/apt/sources.list.bak

  2. [打开配置文件] sudo gedit /etc/apt/sources.list

  3. [删除原内容，添加下列内容]

#清华源
deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic main restricted universe multiverse
deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic main restricted universe multiverse
deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic-updates main restricted universe multiverse
deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic-updates main restricted universe multiverse
deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic-backports main restricted universe multiverse
deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic-backports main restricted universe multiverse
deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic-security main restricted universe multiverse
deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic-security main restricted universe multiverse
deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic-proposed main restricted universe multiverse
deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic-proposed main restricted universe multiverse

#阿里云源
deb http://mirrors.aliyun.com/ubuntu/ bionic main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ bionic-security main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ bionic-updates main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ bionic-proposed main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ bionic-backports main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ bionic main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ bionic-security main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ bionic-updates main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ bionic-proposed main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ bionic-backports main restricted universe multiverse
  1. [更新apt-get] sudo apt-get update

基础软件安装

# 取消开机信息
chmod a-x /etc/update-mothd.d/*

# 常用网络工具安装
sudo apt install -y net-tools

# ssh 安装
sudo apt install -y openssh-server

# gcc 安装
sudo apt install -y gcc-8 g++-8

# zhcon安装
sudo apt-get install zhcon
zhcon --utf8 -drv=vga

关闭自动更新

sudo systemctl stop snapd
sudo systemctl disable snapd
sudo systemctl mask snapd

关闭GUI

// 临时关闭
sudo service lightdm stop
// 设置默认开机启动模式 3
sudo systemctl set-default multi-user.target
// 设置默认开机启动模式 5
sudo systemctl set-default graphical.target

忘记密码

  • 重启ubuntu系统后，长按shift进入grub菜单 ，有的系统直接到第2步(高级选项)
  • 选择末尾带有recovery mode
    +选择root模式

posted on 2021-09-01 11:03  lodger47  阅读(64)  评论(0)    收藏  举报

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