一、su root提示认证失败
- su root提示认证失败
- ubuntu root是默认禁用了，不答应用root登陆，所以先要设置root密码。 执行：sudo passwd root 接着输入密码和root密码，重复密码。再重新启动就可以用root登陆。
- sudo passwd
Password: <--- 输入安装时那个用户的密码
Enter new UNIX password: <--- 新的Root用户密码
Retype new UNIX password: <--- 重复新的Root用户密码
passwd：已成功更新密码
二、apt-get update失败原因
1. 可能没配置网关vi /etc/resolv.conf
nameserver 119.29.29.29
nameserver 182.254.116.116
三、配置静态IP
1. sudo vim /etc/network/interfaces
修改如下部分：
auto eth0
iface eth0 inet static
address 192.168.0.117
gateway 192.168.0.1 #这个地址你要确认下 网关是不是这个地址
netmask 255.255.255.0
network 192.168.0.0
broadcast 192.168.0.255
四、使用官网的源下载速度很慢，可以使用清华大学、阿里的源
1.sudo vim /etc/apt/source.list
# deb cdrom:[Ubuntu 16.04 LTS _Xenial Xerus_ - Release amd64 (20160420.1)]/ xenial main restricted deb-src http://archive.ubuntu.com/ubuntu xenial main restricted #Added by software-properties deb http://mirrors.aliyun.com/ubuntu/ xenial main restricted deb-src http://mirrors.aliyun.com/ubuntu/ xenial main restricted multiverse universe #Added by software-properties deb http://mirrors.aliyun.com/ubuntu/ xenial-updates main restricted deb-src http://mirrors.aliyun.com/ubuntu/ xenial-updates main restricted multiverse universe #Added by software-properties deb http://mirrors.aliyun.com/ubuntu/ xenial universe deb http://mirrors.aliyun.com/ubuntu/ xenial-updates universe deb http://mirrors.aliyun.com/ubuntu/ xenial multiverse deb http://mirrors.aliyun.com/ubuntu/ xenial-updates multiverse deb http://mirrors.aliyun.com/ubuntu/ xenial-backports main restricted universe multiverse deb-src http://mirrors.aliyun.com/ubuntu/ xenial-backports main restricted universe multiverse #Added by software-properties deb http://archive.canonical.com/ubuntu xenial partner deb-src http://archive.canonical.com/ubuntu xenial partner deb http://mirrors.aliyun.com/ubuntu/ xenial-security main restricted deb-src http://mirrors.aliyun.com/ubuntu/ xenial-security main restricted multiverse universe #Added by software-properties deb http://mirrors.aliyun.com/ubuntu/ xenial-security universe deb http://mirrors.aliyun.com/ubuntu/ xenial-security multiverse
时间： 2024-10-12 19:37:42