I know this has been discussed before, but those threads are closed and the results in google aren’t going away. It looks like its partially got some results from both, but old results on the main forum in google and missing results for threads that exist on the archive, I mean it’s been well over a month. I know this is Google’s problem, but maybe they can be nudged to fix it. I’ve seen google update the index for an online shopping website with over 300,000 products in under 15 minutes, many of the products having multiple images and multiple pages of product details text.
Is Google intentionally dragging their heels on re-indexing the archived Manjaro forum? Maybe it would speed up Google’s indexing if the archived forum were exported as an XML sitemap and manually forcefed into google webmaster tools? Maybe that’s already been done and Google is still dragging their feet?
I’m not sure what webserver is running underneath the forum, but if it is Apache, a one line RewriteRule in the new forum subdomain pointing to the relative link in the archived forum subdomain (before handing off to the the 404 page of the new forum) as a permanent 301 redirect and either a rewrite rule or a custom 404 page in the archived forum that sends all 404 traffic to the new forum would make everything automatic.
Considering it has been weeks and Google hasn’t updated their index of the Majaro forums, getting google to update their index seems like a lot more work than a couple redirect rules.