我的板子是nanopi 2 fire 刷的是s5p4418-sd-friendlycore-lite-focal-4.4-armhf-20211123.img
apt update
apt upgrade -y
中文
配置文件 '/etc/update-motd.d/50-motd-news'
==> 在安装后曾被删除(您或者某个脚本删除了它)。
==> 软件包的提交者同时提供了一个更新了的版本。
您现在希望如何处理呢？ 您有以下几个选择：
Y 或 I ：安装软件包维护者所提供的版本
N 或 O ：保留您原来安装的版本
D ：显示两者的区别
Z ：把当前进程切换到后台，然后查看现在的具体情况
默认的处理方法是保留您当前使用的版本。
50-motd-news (Y/I/N/O/D/Z) [默认选项=N] ? N
英文
#Configuration file '/etc/update-motd.d/50-motd-news'
#==> Modified (by you or by a script) since installation.
#==> Package distributor has shipped an updated version.

What would you like to do about it ? Your options are:

Y or I : install the package maintainer's version

#N or O  : keep your currently-installed version
 # D     : show the differences between the versions
  #Z     : start a shell to examine the situation

#The default action is to keep your current version.
#issue (Y/I/N/O/D/Z) [default=N] ? N

之后就卡死完全不动了，进度条一直在1%，求指点

望采纳，建议修改：修改镜像源，方法如下：
输入下面的命令，将原本配置中的xxx镜像源替换成，中科大镜像源

sudo vim /etc/apt/sources.list

下面是我之前ubuntu一开始的配置，我后来修改了：

我修改成了下面的配置：

deb https://mirrors.ustc.edu.cn/ubuntu/ bionic main restricted universe multiverse
deb-src https://mirrors.ustc.edu.cn/ubuntu/ bionic main restricted universe multiverse
deb https://mirrors.ustc.edu.cn/ubuntu/ bionic-updates main restricted universe multiverse
deb-src https://mirrors.ustc.edu.cn/ubuntu/ bionic-updates main restricted universe multiverse
deb https://mirrors.ustc.edu.cn/ubuntu/ bionic-backports main restricted universe multiverse
deb-src https://mirrors.ustc.edu.cn/ubuntu/ bionic-backports main restricted universe multiverse
deb https://mirrors.ustc.edu.cn/ubuntu/ bionic-security main restricted universe multiverse
deb-src https://mirrors.ustc.edu.cn/ubuntu/ bionic-security main restricted universe multiverse
deb https://mirrors.ustc.edu.cn/ubuntu/ bionic-proposed main restricted universe multiverse
deb-src https://mirrors.ustc.edu.cn/ubuntu/ bionic-proposed main restricted universe multiverse

保存退出之后，在终端窗口中输入如下命令进行更新：

sudo apt-get update