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+# INSTALLATION NOTES
+
+On CentOS 7.5 - fresh install - June 2018
+
+
+## Repositories
+
+    # yum install centos-release-scl
+    # yum install https://dl.fedoraproject.org/pub/epel/epel-release-latest-7.noarch.rpm
+    # yum install http://rpms.remirepo.net/enterprise/remi-release-7.rpm
+    # yum install yum-utils
+
+## MariaDB 10.2
+
+GLPI requires MariaDB >= 10, and default version 5.5 in base repository is not compatible, so using the SCL of the latest MariaDB 10.2 (10.1 is also OK).
+
+### Install
+
+    # yum install rh-mariadb102-mariadb-server
+
+### Start and enable the service
+
+    # systemctl enable --now rh-mariadb102-mariadb
+
+### Secure it
+
+    # scl enable rh-mariadb102 bash
+    # mysql --version
+    mysql  Ver 15.1 Distrib 10.2.8-MariaDB...
+    # mysql_secure_installation
+
+### Create GLPI database and account
+
+    # mysql -uroot -prootsecret
+    MariaDB> CREATE USER 'glpi'@'%' IDENTIFIED BY 'glpisecret';
+    MariaDB> GRANT USAGE ON *.* TO 'glpi'@'%' IDENTIFIED BY 'glpisecret';
+    MariaDB> CREATE DATABASE IF NOT EXISTS `glpi` ;
+    MariaDB> GRANT ALL PRIVILEGES ON `glpi`.* TO 'glpi'@'%';
+    MariaDB> FLUSH PRIVILEGES;
+    MariaDB> exit
+
+## Apache HTTP Server and PHP 7.2
+
+GLPI requires PHP >= 5.6, so default version 5.4 in base repository is not compatible, so using the latest version 7.2 for performance (7.1 is also OK, 5.6 and 7.0 are close to EOL).
+
+### Install
+
+    # yum-config-manager --enable remi-php72
+    # yum install httpd php php-opcache php-apcu
+    # php -v
+    PHP 7.2.6 (cli) (built: May 23 2018 09:50:51) ( NTS )
+
+### Allow access to webserver
+
+    # firewall-cmd --zone=public --add-service=http --permanent
+    # firewall-cmd --reload
+
+### Start and enable the service
+
+    # systemctl enable --now httpd
+
+## GLPI 9.3
+
+### Install
+
+    # yum-config-manager --enable remi
+    # yum-config-manager --enable remi-glpi93
+    # yum install glpi
+
+### Populate the DB
+
+    # cd /usr/share/glpi/scripts/
+    # php cliinstall.php --db=glpi --user=glpi --pass=glpisecret
+
+## Done
+
+    Browse http://servername/glpi/ (login=glpi, password=glpi)
+
+
+---------------
+
+## Mariadb upgrade from 5.5 to 10.2
+
+If you have some DB, created with default mariadb 5.5
+
+### Install
+
+    # yum install rh-mariadb102-mariadb-server
+
+If needed, create a new FS for /var/opt/rh/rh-mariadb102/lib/mysql
+
+
+### Lazy way
+
+    # systemctl stop mariadb
+    # systemctl disable mariadb
+
+    # rsync -av /var/lib/mysql/ /var/opt/rh/rh-mariadb102/lib/mysql/
+
+    # systemctl start rh-mariadb102-mariadb
+    # systemctl enable rh-mariadb102-mariadb
+
+    # mysql_upgrade -pxxx
+
+### Long way  dump
+
+Change /etc/opt/rh/rh-mariadb102/my.cnf.d/mariadb-server.cnf to use a different port
+
+    [server]
+    socket=/var/lib/mysql/mysql2.sock
+    port=3307
+
+    # systemctl start rh-mariadb102-mariadb
+
+    # scl enable rh-mariadb102 bash
+    # mysqldump -h127.0.0.1 -pxxx --all-databases | mysql -h127.0.0.1 -P3307
+
+    # systemctl stop mariadb
+    # systemctl disable mariadb
+    # systemctl stop rh-mariadb102-mariadb
+
+Restore /etc/opt/rh/rh-mariadb102/my.cnf.d/mariadb-server.cnf
+
+    [server]
+    socket=/var/lib/mysql/mysql.sock
+    port=3306
+
+    # systemctl start rh-mariadb102-mariadb
+    # systemctl enable rh-mariadb102-mariadb
+