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cipher@panodora:~$ sudo apt-get purge 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 282 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 ... 128152 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)
cipher@panodora:~$