前言

由于Ubuntu18经常出错，因而决定回退Ubuntu16，下面是记录回退问题及美化，以便以后需要。

问题总结

磁盘挂载

挂载其他磁盘分区时，提示错误“Metadata kept in Windows cache, refused to mount.”，执行下面命令即可修复。

sudo ntfsfix /dev/sdad

若是提示错误“Windows is hibernated, refused to mount.”，则关闭Windows的快速启动。

双系统时间不一致

Windows与Ubuntu的时间不一样，执下面的命令即可。

sudo timedatectl set-local-rtc 1

安装chrome

sudo wget http://www.linuxidc.com/files/repo/google-chrome.list -P /etc/apt/sources.list.d/wget -q -O - https://dl.google.com/linux/linux_signing_key.pub  | sudo apt-key add -sudo apt updatesudo apt install google-chrome-stable

更换APT源

修改文件/etc/apt/sources.list为下面内容，以更换为阿里的源。

# deb cdrom:[Ubuntu 16.04 LTS _Xenial Xerus_ - Release amd64 (20160420.1)]/ xenial main restricteddeb-src http://archive.ubuntu.com/ubuntu xenial main restricted #Added by software-propertiesdeb http://mirrors.aliyun.com/ubuntu/ xenial main restricteddeb-src http://mirrors.aliyun.com/ubuntu/ xenial main restricted multiverse universe #Added by software-propertiesdeb http://mirrors.aliyun.com/ubuntu/ xenial-updates main restricteddeb-src http://mirrors.aliyun.com/ubuntu/ xenial-updates main restricted multiverse universe #Added by software-propertiesdeb http://mirrors.aliyun.com/ubuntu/ xenial universedeb http://mirrors.aliyun.com/ubuntu/ xenial-updates universedeb http://mirrors.aliyun.com/ubuntu/ xenial multiversedeb http://mirrors.aliyun.com/ubuntu/ xenial-updates multiversedeb http://mirrors.aliyun.com/ubuntu/ xenial-backports main restricted universe multiversedeb-src http://mirrors.aliyun.com/ubuntu/ xenial-backports main restricted universe multiverse #Added by software-propertiesdeb http://archive.canonical.com/ubuntu xenial partnerdeb-src http://archive.canonical.com/ubuntu xenial partnerdeb http://mirrors.aliyun.com/ubuntu/ xenial-security main restricteddeb-src http://mirrors.aliyun.com/ubuntu/ xenial-security main restricted multiverse universe #Added by software-propertiesdeb http://mirrors.aliyun.com/ubuntu/ xenial-security universedeb http://mirrors.aliyun.com/ubuntu/ xenial-security multiverse

美化

更换为Gnome桌面

先卸载Unity桌面及Lightdm，执行下面命令。

apt purge unity*apt purge lightdm

最小化安装Gnome及安装Gdm，执行下面命令。

apt install gnome-shellapt install gdm

最后重启即可。

美化Gnome桌面

先安装gnome-tweak-tool

apt install gnome-tweak-tool

安装以下Gnome Shell extension

• Topicon plus
• Dash to dock

执行下面命令，安装Numxi图标

sudo apt-add-repository ppa:numix/ppasudo apt-get updatesudo apt-get install numix-icon-theme-circle