I have a old server that I need to patch. The server is running on Debian 6.0.10. However, apt-get update/upgrade does not work. I have a bunch of 404 not found. I suspect the version is too old and I can update with apt... What are my options here before building a new server and migrating my code and apps ?
Regards,
First step: Alter your package sources to point to the Debian Archives and update to the latest packages available there.
From there, you should update further to version 7 and 8.
I was able to patch the current packages then point my sources.list to the next version and upgrade without any issue up to version 8, where Varnish get from version 3.x.y to version 4.x.y. (This is where is failed - only for Varnish) since it`s ferry different. But this is another story.
So it did work fine.