iRODS Upgrade from 4.1.x to 4.1.8

After alot of strange errors we did an upgrade of the iRODs-1 and iRODs-2 server.
More : https://groups.google.com/forum/#!topic/irod-chat/D7I5x-biw7I

My Script looks like this :  (please note do a FULL DB-backup before - better safe than sorry !! )

### BASH
wget ftp://ftp.renci.org/pub/irods/releases/4.1.8/centos7/irods-database-plugin-mysql-1.8-centos7-x86_64.rpm
wget ftp://ftp.renci.org/pub/irods/releases/4.1.8/centos7/irods-database-plugin-postgres-1.8-centos7-x86_64.rpm
wget ftp://ftp.renci.org/pub/irods/releases/4.1.8/centos7/irods-database-plugin-postgres93-1.8-centos7-x86_64.rpm

wget ftp://ftp.renci.org/pub/irods/releases/4.1.8/centos7/irods-dev-4.1.8-centos7-x86_64.rpm

wget ftp://ftp.renci.org/pub/irods/releases/4.1.8/centos7/irods-icat-4.1.8-centos7-x86_64.rpm

wget ftp://ftp.renci.org/pub/irods/releases/4.1.8/centos7/irods-icommands-4.1.8-centos7-x86_64.rpm

wget ftp://ftp.renci.org/pub/irods/releases/4.1.8/centos7/irods-resource-4.1.8-centos7-x86_64.rpm

wget ftp://ftp.renci.org/pub/irods/releases/4.1.8/centos7/irods-runtime-4.1.8-centos7-x86_64.rpm

rpm -U irods-dev-4.1.8-centos7-x86_64.rpm

rpm -U irods-icat-4.1.8-centos7-x86_64.rpm

rpm -U irods-runtime-4.1.8-centos7-x86_64.rpm

rpm -U irods-database-plugin-postgres-1.8-centos7-x86_64.rpm

postgresql-setup initdb

systemctl start postgresql

systemctl enable postgresql