一、设置root密码:
打开命令行(终端),输入
sudo passwd root
即可设置root密码,直接输入密码即可,linux系统不会显示输入的密码。
二、更换下载源:
ubuntu默认为国外下载源,国内下载较慢,这里将下载源更换为阿里源。
1. 进入root模式:输入 su root ,输入密码。
2. 进入根目录:输入cd /
3. 更改下载源文件:
输入以下命令:第一行进行文件备份,第二行打开文件。
sudo cp /etc/apt/sources.list /etc/apt/sources.list.backup
sudo gedit /etc/apt/sources.list
在弹出的文本框中将原来的内容删掉,改为以下内容,保存
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
注意不同ubuntu版本的下载源不一样,此处为18.04
之后进行更新,输入以下命令
sudo apt-get update
sudo apt-get upgrade
更新完成即可
3. 安装32位兼容库:
依次输入以下命令即可。
dpkg --add-architecture i386
apt-get update
apt-get install libc6:i386
apt-get install libncurses5:i386
apt-get install libstdc++6:i386
apt-get install libz1:i386