Extracting templates from packages: 100% Preconfiguring packages ... dpkg: error: unable to access the dpkg database directory /var/lib/dpkg: Read-only file system E: Sub-process /usr/bin/dpkg returned an error code (2)
1 sudo apt update
2 sudo apt dist-upgrade 此步是获取需要升级的程序清单 不要在此升级，会有只读系统错误提示，我们只要复制这些程序名称就可以
3 终端另开一页面 用sudo apt install 贴上刚才复制的程序名 回车安装
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Extracting templates from packages: 100%
Preconfiguring packages ...
dpkg: error: unable to access the dpkg database directory /var/lib/dpkg: Read-only file system
E: Sub-process /usr/bin/dpkg returned an error code (2)