如何删除inted包？
如果我尝试
$ sudo apt-get purge --auto-remove inetd
Reading package lists... Done
Building dependency tree
Reading state information... Done
Package 'inetd' is not installed, so not removed
0 upgraded, 0 newly installed, 0 to remove and 21 not upgraded.
但是我已经安装了它（例如，我可以查看它的手册页man inetd甚至运行它）：
$ inetd
inetd: non-root must specify a config file
那么如何删除这个包呢？
我试图inkscape安装
$sudo apt-get install inkscape
但我得到一个错误：
dpkg: unrecoverable fatal error, aborting:
unknown system group 'smmsp' in statoverride file; the system group got removed
before the override, which is most probably a packaging bug, to recover you
can remove the override manually with dpkg-statoverride
E: Sub-process /usr/bin/dpkg returned an error code (2)
我应该删除smmsp导致错误的那个组吗？甚至在这里是什么意思system group？什么是statoverride文件，什么配置？