Comment 3 for bug 1702059

It is possible to bypass the default root entry by creating /etc/debmirror.conf with the following entry:

# Taken from /usr/share/doc/debmirror/examples/debmirror.conf
$remoteroot="";
# The config file must return true or perl complains.
# Always copy this.
1;

However, debmirror still fails with a 404 error as it tries to download

http://apt.puppetlabs.com//dists/trusty/Release => 404 Not Found

still with a double // in the URL, which also generates a 404 when tried in a browser