Tip for those who want to help with testing,
before running nethserver-install on your CentOS test-setup edit
/etc/yum.repos.d/NethServer.repo
enable nethserver-testing (enabled=1) only for nethserver-base (includepkgs=nethserver-base*):
...
[nethserver-testing]
name=NethServer-$releasever - Testing
mirrorlist=http://mirrorlist.nethserver.org/?release=$releasever&repo=testing&arch=$basearch&nsrelease=$nsrelease
#baseurl=http://mirror.nethserver.org/nethserver/$releasever/testing/$basearch/
gpgcheck=1
repo_gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-NethServer-$releasever
enabled=1
enablegroups=0
includepkgs=nethserver-base*
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