我无法卸载 Ironhide，也无法安装任何其他软件包

Question

我安装了 Ironhide（又名 BumbleBee）。它无法使其工作，但现在我无法卸载该软件包，并且它阻止我安装或删除其他任何东西。有什么想法可以解决这个问题吗？

$ sudo apt-get remove -f ironhide
Reading package lists... Done
Building dependency tree       
Reading state information... Done
The following packages were automatically installed and are no longer required:
  virtualgl acpi-call-dkms virtualgl-libs easybashgui
Use 'apt-get autoremove' to remove them.
The following packages will be REMOVED
  ironhide
0 upgraded, 0 newly installed, 1 to remove and 65 not upgraded.
1 not fully installed or removed.
After this operation, 1,901 kB disk space will be freed.
Do you want to continue [Y/n]? Y
(Reading database ... 297969 files and directories currently installed.)
Removing ironhide ...
groupdel: group 'ironhide' does not exist
dpkg: error processing ironhide (--remove):
 subprocess installed post-removal script returned error exit status 6
Processing triggers for ureadahead ...
Errors were encountered while processing:
 ironhide
E: Sub-process /usr/bin/dpkg returned an error code (1)

Answer 1

我通过执行以下操作解决了这个问题：

编辑了文件 /var/lib/dpkg/info/ironhide.postrm

注释掉以下几行：

if [ `cat /etc/group |grep ironhide |wc -l` > 0 ]; then
        groupdel ironhide
fi

然后我能够成功运行：

$ sudo apt-get remove ironhide