codeigniter not working in nginx(running on localhost), linux mint
Either /home/scoders/Workspace/public_html/ci/index.php is inaccessible for some reason or SCRIPT_FILENAME is being overridden in include fastcgi_params;
As a general rule, you should include first and fastcgi_param after.
For example:
location ~ \.php$ { fastcgi_pass unix:/var/run/php5-fpm.sock; include fastcgi_params; fastcgi_param REQUEST_URI $request_uri; fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;}Also, if your default URI is /ci/index.php and not /index.php, change your location / to:
location / { try_files $uri $uri/ /ci/index.php?$args;}