Rename 01.blog to 01.whatever

Hi all,
I have the same problem like https://getgrav.org/forum#!/plugin-development:rename-blog-to-news . I'm running the latest Grav. Now I want to rename 01.blog to 01.whatever so that my links will be mydomain.com/whatever/pagename instead of mydomain.com/blog/pagename. But same as in the above linked article I get a 404 when I open the homepage without any details (mydomain.com). But opening mydomain.com/live works fine. I tried to change the route of 'blog' in system.yaml to '/live' but it did not help.
Any ideas?

Cache is disabled / cleared?

Yes, click 'Clear Cache' -> 'All Caches' in Admin Panel.

If you changed the homepage URL, set the new homepage route in system.yaml, under home.alias

That fixed it! Thanks a lot, Flavio!