[Bug 785707] Re: package clamav-freshclam 0.97 dfsg-2ubuntu1 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1

[Clint Byrum]

Hello P.J., thanks for taking the time to file this bug report.

The relevant error is here:

Setting up clamav-freshclam (0.97+dfsg-2ubuntu1) ...
chown: invalid group: `clamav:adm'
dpkg: error processing clamav-freshclam (--configure):
 subprocess installed post-installation script returned error exit status 1

The adm group is always assumed to exist, as all system log files are
generally owned by this group. Is it possible you deleted it from your
system? You can check with

getent group adm

If it does not exist, you need to re-create it with

groupadd -g 4 adm

And then try

sudo dpkg-reconfigure -a

Or if you have removed clamav since this bug report, just try installing
it again.

Closing as Invalid.

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

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https://bugs.launchpad.net/bugs/785707

Title:
  package clamav-freshclam 0.97 dfsg-2ubuntu1 failed to install/upgrade:
  subprocess installed post-installation script returned error exit
  status 1