虚拟软件包'lua'无法卸载- 树莓派

我曾经安装过各种版本的Lua，但并不是很精通Debian/pi（指Raspberry Pi的操作系统），在使用Lua rocks安装Lua文件系统（lfs）模块后，我在系统中有了更多的版本，我无法摆脱。

我该怎么做才能完全删除Lua并重新开始，这一次要确保安装了lfs模块？

目前，我所尝试的所有卸载/删除操作都是走到了死胡同-通常是出现虚拟软件包的消息。。

pi@raspberrypi:~ $ lua -v
Lua 5.2.3  Copyright (C) 1994-2013 Lua.org, PUC-Ri0

pi@raspberrypi:~ $ sudo apt-cache depends lua
<lua>

pi@raspberrypi:~ $ sudo apt-get purge lua
Reading package lists... Done
Building dependency tree
Reading state information... Done
Virtual packages like 'lua' can't be removed
0 upgraded, 0 newly installed, 0 to remove and 36 not upgraded.

pi@raspberrypi:~ $ sudo apt-get remove lua
Reading package lists... Done
Building dependency tree
Reading state information... Done
Virtual packages like 'lua' can't be removed
0 upgraded, 0 newly installed, 0 to remove and 36 not upgraded.

pi@raspberrypi:~ $ luarocks --version
/usr/bin/luarocks 2.2.0
LuaRocks main command-line interface