视频教程
更换debian源
nano /etc/apt/sources.list修改文件内容为以下：
deb http://mirrors.ustc.edu.cn/debian-security/ buster/updates main contrib non-free
deb-src http://mirrors.ustc.edu.cn/debian-security/ buster/updates main contrib non-free
deb http://mirrors.ustc.edu.cn/debian/ buster-updates main contrib non-free
deb-src http://mirrors.ustc.edu.cn/debian/ buster-updates main contrib non-free
deb https://mirrors.tuna.tsinghua.edu.cn/debian/ buster main contrib non-free
deb-src https://mirrors.tuna.tsinghua.edu.cn/debian/ buster main contrib non-free
更换openmediavault源
nano /etc/apt/sources.list.d/openmediavault.list 修改文件内容为以下：
deb https://mirrors.bfsu.edu.cn/OpenMediaVault/public/ usul main
deb https://mirrors.bfsu.edu.cn/OpenMediaVault/public/ usul-proposed main
deb https://mirrors.bfsu.edu.cn/OpenMediaVault/public/ usul partner
更换debian kernel-backports源
nano /etc/apt/sources.list.d/openmediavault-kernel-backports.list文件内容如下
deb https://mirrors.tuna.tsinghua.edu.cn/debian/ buster-backports main contrib non-free