The following bug has been logged on the website:
Bug reference: 13916
Logged by: reiner peterke
Email address: reiner.peterke@splendiddata.com
PostgreSQL version: 9.5.0
Operating system: centos 7.0.1406
Description:
This appears buggy to me or at least inconsistent.
using pg_upgrade to upgrade from 9.4.5 to 9.5.0
the upgrade runs then at the end prints.
Only the install user can be defined in the new cluster.
Failure, exiting
But when i look in the 9.5 cluster everything appears to be working with all
users.
I don't understand the error message especially since it appears to have
succeeded in the upgrade.
Am i missing something?