Cannot upgrade to elastic v5.2.2

[PierreBesson]

Kibana is blank when upgrading, it might be related to our script to create the logstash-* index.

[ygokirmak]

I think the problem is related to x-pack.
When you open kibana, it makes request to elasticsearch to get default-index,
elasticsearch returns 404 to this request although index exists and show blank screen (elastic/kibana#9028)

I checked elasticsearch logs and seems kibana user does not have permission to get details of default-index;
working request;
curl -XGET "localhost:9200/logstash-*/_mapping/field/*?ignore_unavailable=false&allow_no_indices=false&include_defaults=true" -u elastic:changeme

not working request;
curl -XGET "localhost:9200/logstash-*/_mapping/field/*?ignore_unavailable=false&allow_no_indices=false&include_defaults=true" -u kibana:changeme

disabling x-pack seems solving the problem

[PierreBesson]

@ygokirmak Thank you for finding the cause of this !