为什么在 Debian 中，您必须手动编辑/etc/apt/source.list才能接收 LTS 更新，如官方 Debian LTS Wiki中所述？
为什么它不像 Ubuntu 那样无需手动更改即可获得 LTS 更新/etc/apt/source.list？
/etc/apt/source.list这是安装后的原图
deb http://deb.debian.org/debian buster main
deb-src http://deb.debian.org/debian buster main
deb http://deb.debian.org/debian-security buster/updates main
deb-src http://deb.debian.org/debian-security buster/updates main
# buster-updates, previously known as 'volatile'
deb http://deb.debian.org/debian buster-updates main
deb-src http://deb.debian.org/debian buster-updates main
deb http://deb.debian.org/debian/ buster main contrib non-free
deb-src http://deb.debian.org/debian/ buster main contrib non-free
deb http://security.debian.org/ buster/updates main contrib non-free
deb-src http://security.debian.org/ buster/updates main contrib …