Solved: Debian Stretch x86_64 install fail silently (incompatible with backports)

[AndreasKieling]

In raising this issue, I confirm the following: {please fill the checkboxes, e.g: [X]}

• I have read and understood the contributors guide.
• The issue I am reporting can be replicated.
• [] The issue I am reporting isn't a duplicate (see FAQs, closed issues, and open issues).

How familiar are you with the the source code relevant to this issue?:

1

---

Expected behaviour:

Installer completes

Actual behaviour:

It wont. Similar behaviour to:
#2392
Tried to install php-cgi and php-sqlite3 as suggested there. Doesnt work.
Dialog thing pops up after scrolling checkmarks of to be installed pkgs.
"0%" wait 2s "100%" Script ends, no pihole installed except in /etc/.pihole.

Steps to reproduce:

KVM/Libvirt VM on AMD Host, install debian stretch from the dvd, select only basic packages, add stretch and stretch-backports to sources.list, as a http mirror instead of from dvd, update, reboot, git clone pihole, run script.

Debug token provided by uploading pihole -d log:

{} # Not yet available

Troubleshooting undertaken, and/or other relevant information:

bash -x and > log.wtf
Wants libsqlite3-0 (= 3.16.2-5+deb9u1) but 3.27.2-3~bpo9+1 shall be installed.
Enabled backports are the culprit.

[AndreasKieling]

Feel free to close here. But its worth mentioning.

[technicalpyro]

The reason it it failing is due to using a OS image that does not include packages that it should see #2798 for more detail

[dschaper]

Well, not to be "that guy" but this is pretty self-inflicted. Backports isn't something that should be enabled without apt pinning and selecting the specific package that you need from that repository. Definitely not a bug nor something for us to fix.

[AzureMarker]

Closing as this is not a bug or something Pi-hole can fix.