New install - Ajax failed

[dugjohnson]

I have installed all the appropriate files, set permissions per the documentation, stepped through the install. When I got to the page after the environment check, I got a message about how to set up my nginx server (thanks for that).
I put all of the needed directives in my nginx server for that site, restarted nginx and php-fpm.
Now there is only the error message on that page, Ajax failed
Looking in the nginx log it says (among much more)
Permission denied: unable to create a folder on the server data/logs in application/Espo/Core/Utils/File/Manager.php:513
I have gone so far as to chmod -R 777 the data directory.
possibly of interest, when I retry after the 777, data and all subs is set back to 775

Can someone suggest the next step to figuring this out?

[dugjohnson]

Found it.
I separated out the nginx error log to make it easier to sift through.
Turns out that the group settings on the /var/php/sessions directory was on apache for some long lost unknown reason. It makes me wonder why some of the other things have worked...but...

Changing the group to the www group fixed it. Install done.