Install quits/crashes after "Checking for resolvconf" - failed to install dns-root-data in Linux Mint 17.2 Rafaela

That's what I've been trying to do, like having PHP installed ahead of time, along with other tools that were listed as "will be installed".
It looks like it checks off resolvconf, I get the "Installing packages" screen with the progressbar at 0% and than just land back on prompt like attached.

Does the installer create any logs I could dig into? (/etc/pihole/ doesn't have any, just the adslist.list file)

UPDATE:
Based on another thread, I've removed the /var/www/html/admin/ folder and ran the installer with bash -x
Now the output seems to have more info:

[ ] Checking for resolvconf

  • for i in '"${argArray1[@]}"'
  • printf ' %b Checking for %s...' '[i]' libcap2
    [i] Checking for libcap2...+ grep 'ok installed'
  • dpkg-query -W '-f=${Status}' libcap2
  • printf '%b %b Checking for %s\n' '\r\033[K' '[\e[1;32m✓\e[0m]' libcap2
    [ ] Checking for libcap2
  • [[ 1 -gt 0 ]]
  • test_dpkg_lock
  • i=0
  • fuser /var/lib/dpkg/lock
  • return 0
  • debconf-apt-progress -- apt-get --yes --no-install-recommends install dns-root-data
    mint@mint-desktop /etc/pihole $

Tried manually:
mint@mint-desktop /etc/pihole $ sudo apt-get install dns-root-data
Reading package lists... Done
Building dependency tree
Reading state information... Done
E: Unable to locate package dns-root-data
mint@mint-desktop /etc/pihole $

Could be a repository I don't have added?

So based on this thread: Error during clean install of v4.0 (Ubuntu) - #48 by Terrin2k
even if I get dns-root-data installed, I'll be having other issues. Might just a) pick up a raspberryPi for just this b) do a full new install of an OS that is fully supported =D