Installing Cobbler on Ubuntu 15.10 seems to break apache, how can I fix this?

Question

I am trying to install Cobbler on a brand new Ubuntu 15.10 virtual box but it is not working. When I run the apt-get install cobbler cobbler-web it seems to break apache completely to the point I can't get it working again.

I see this in the apache error log:

[wsgi:crit] [pid 8112:tid 140273573488512] mod_wsgi (pid=8112): The mod_python module can not be used on conjunction with mod_wsgi 4.0+. Remove the mod_python module from the Apache configuration.

and this in the auth.log :

polkitd(authority=local): Unregistered Authentication Agent for unix-process:8081:54865 (system bus name :1.24, object path /org/freedesktop/PolicyKit1/AuthenticationAgent, locale en_US.UTF-8) (disconnected from bus)

I have tried removing the mod_python and wsgi modules but apache still doesn't start up. And I think Cobbler uses them anyways, so I kind of need them.

I have also tried disabling polkitd. I don't find any clues when searching for that weird error message.

I was able to install Cobbler on Ubuntu 14.04 pretty easily and apache works fine.

Here is the basic chain of install commands I used:

apt-get update
apt-get install apache2
apt-get install isc-dhcp-server
apt-get install bind9 bind9utils bind9-doc
apt-get install cobbler cobbler-web debmirror mkisofs

Answer 1

Disable the module by typing sudo a2dismod python

You should then see this:

Module python disabled. To activate the new configuration, you need to run: service apache2 restart

So type sudo service apache2 restart .

If that doesn't fix it, check the error log for more information by typing cat /var/log/apache2/error.log .