[Bug 1559356] Re: package clamav-freshclam 0.98.7+dfsg-0ubuntu0.14.04.1 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1

[ChristianEhrhardt]

It seems that some or all of the package was removed manually.
Therefore the upgrade is failing

>From your logs:
chown: invalid user: ‘clamav:adm’
...
modified.conffile..etc.apparmor.d.usr.sbin.clamd: [deleted]
modified.conffile..etc.init.d.clamav.daemon: [deleted]
modified.conffile..etc.logcheck.ignore.d.paranoid.clamav.daemon: [deleted]
modified.conffile..etc.logcheck.ignore.d.server.clamav.daemon: [deleted]

Please consider purging (apt-get remove --purge) and re-installing it to
get rid of the messages.

Marking as incomplete, please feel free to reopen if after correctly
"re-populating"

** Changed in: clamav (Ubuntu)
       Status: New => Incomplete

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https://bugs.launchpad.net/bugs/1559356

Title:
  package clamav-freshclam 0.98.7+dfsg-0ubuntu0.14.04.1 failed to
  install/upgrade: subprocess installed post-installation script
  returned error exit status 1

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