On Jul 17, 2011, at 9:36 PM, AI Rumman wrote: > Database Version: Postgresql 9.0.1 > OS: Linux rumman.dhaka 2.6.18-92.el5xen #1 SMP Tue Jun 10 19:55:54 EDT 2008 i686 i686 i386 GNU/Linux > Installed from: Source configure > Problem: > When I try to connect to postgres, I got - > psql: FATAL: role "postgres" does not exist > In fact, it seems to me that no role exists. > > Problem Cause: > > For some reason, filesystem of my server was corrupted. Our system admin used CENTOS repair tools and it damaged the database files. > It created some of the directory as files. These are - > - pg_notify > - pg_xlog > Some files were not readable during start. These were - pg_internal and pg_control in the global directory. > > At first, when I tried to start the server after CENTOS repair, I got the error message - > DETAIL: The database cluster was initialized with PG_CONTROL_VERSION 0, but the server was compiled with PG_CONTROL_VERSION 903. Your data is probably gone. Check when you last made backups. But before you do *anything* else, create a full filesystem level copy of the entire database directory, so that when you end up breaking things further by trying to recover it you'll have a "clean" copy of the corrupted database to start over from. Cheers, Steve -- Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general