[root@srv02mil1 ~]# rpm -Uhv http://yum.postgresql.org/9.2/redhat/rhel-6-x86_64/pgdg-centos92-9.2-6.noarch.rpm
Retrieving http://yum.postgresql.org/9.2/redhat/rhel-6-x86_64/pgdg-centos92-9.2-6.noarch.rpm
Preparing... ########################################### [100%]
1:pgdg-centos92 ########################################### [100%]
[root@srv02mil1 ~]# yum install postgresql92-server postgresql92-contrib postgresql92 postgresql92-libs
[root@srv02mil1 ~]# /etc/init.d/postgresql-9.1 stop
Stopping postgresql-9.1 service: [ OK ]
[root@srv02mil1 ~]# su - postgres
[postgres@srv01mil1 ~]$ /usr/pgsql-9.2/bin/pg_upgrade -b /usr/pgsql-9.1/bin/ -B /usr/pgsql-9.2/bin/ -d /var/lib/pgsql/9.1/data/ -D /var/lib/pgsql/9.2/data/
Performing Consistency Checks
-----------------------------
Checking current, bin, and data directories ok
Checking cluster versions ok
Checking database user is a superuser ok
Checking for prepared transactions ok
Checking for reg* system OID user data types ok
Checking for contrib/isn with bigint-passing mismatch ok
Creating catalog dump ok
Checking for presence of required libraries ok
Checking database user is a superuser ok
Checking for prepared transactions ok
If pg_upgrade fails after this point, you must re-initdb the
new cluster before continuing.
Performing Upgrade
------------------
Analyzing all rows in the new cluster ok
Freezing all rows on the new cluster ok
Deleting files from new pg_clog ok
Copying old pg_clog to new server ok
Setting next transaction ID for new cluster ok
Resetting WAL archives ok
Setting frozenxid counters in new cluster ok
Creating databases in the new cluster ok
Adding support functions to new cluster ok
Restoring database schema to new cluster ok
Removing support functions from new cluster ok
Copying user relation files
ok
Setting next OID for new cluster ok
Creating script to analyze new cluster ok
Creating script to delete old cluster ok
Upgrade Complete
----------------
Optimizer statistics are not transferred by pg_upgrade so,
once you start the new server, consider running:
analyze_new_cluster.sh
Running this script will delete the old cluster's data files:
delete_old_cluster.sh
[postgres@srv01mil1 ~]$
[postgres@srv01mil1 ~]$ exit
logout
[root@srv02mil1 ~]# /etc/init.d/postgresql-9.2 start
Starting postgresql-9.2 service: [ OK ]