[Bug 871236] Re: package clamav-base 0.97.2 dfsg-1ubuntu1.11.04 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1

[Imre Gergely]

adduser: The user `clamav' already exists. Exiting.
dpkg: error processing clamav-base (--configure):
 subprocess installed post-installation script returned error exit status 1

It seems like the clamav user was already present when you tried
installing clamav. If it was a fresh install, try to remove/purge
everything and reinstall clamav. If you made changes to the
configuration (/etc/clamav/*.conf), save it, then do the following:

apt-get purge libclamav6 clamav-base

This will remove everything. Then reinstall it.

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

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https://bugs.launchpad.net/bugs/871236

Title:
  package clamav-base 0.97.2 dfsg-1ubuntu1.11.04 failed to
  install/upgrade: subprocess installed post-installation script
  returned error exit status 1

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