FAN 2.0 is based on a minimal CentOS. But it's possible to install all FAN packages under RHEL. This post explain how to install all packages FAN 2.0 under Red Hat Enterprise Server 5.4 32 bits

For example, download FAN-2.0.iso in /tmp

# mkdir -p /mnt/isoFAN
# mount -o loop /tmp/FAN-2.0.iso /mnt/isoFAN

I suppose you have rhel-server-5.4-i386-dvd.iso in /tmp

# mkdir -p /mnt/isoRHEL
# mount -o loop /tmp/rhel-server-5.4-i386-dvd.iso /mnt/isoRHEL

# vi /etc/yum.repo.d/myiso.repo

[iso-FAN]
enabled = 1
name = iso FAN
baseurl = file:///mnt/isoFAN
gpgcheck = 0

[iso-RHEL]
enabled = 1
name = iso RHEL
baseurl = file:///mnt/isoRHEL/Server
gpgcheck = 0

# yum install php \ 
    rrdtool-php \
    php-ldap \
    rrdtool \
    php-snmp \
    rrdtool-perl \
    rsyslog \
    rsyslog-mysql \
    dokuwiki \
    dokuwiki-fantemplate \
    dokuwiki-fan-documentation \
    dokuwiki-multilingual-plugin \
    wikigenerator \
    radiusclient \
    nagios \
    nagios-plugins \
    nagios-plugins-setuid \
    nagios-ndoutils \
    nagios-nrpe \
    nagios-plugins-nrpe \
    nagios-nsca \
    nagios-nsca-client \
    nagios-compaq-plugins \
    nagios-snmp-plugins \
    nagios-hitachi-plugins \
    nagios-hp-plugins \
    nagios-plugin-postgresql \
    nagios-plugin-check-logfiles \
    nagios-plugin-mysql-health \
    nagvis \
    nareto \
    fan-sendmailcolor \
    pear-centreon \
    centreon \
    centreon-2.0-de_DE \
    centreon-2.0-es_ES \
    centreon-2.0-es_PR \
    centreon-2.0-fr_FR \
    centreon-2.0-nl_NL \
   centreon-2.0-no_NO \
    centreon-2.0-pt_BR \
    centreon-2.0-ru_RU \
    fan-html \
    fan-repo \
    centreon-database \
    nareto-database \
    nagios-ndoutils-database \
    NagVis-Iconset-Big-Folder-Nuvola \
    NagVis-Iconset-Big-HDD \
    NagVis-Iconset-Big-Thermo \
    NagVis-Iconset-Crystal-Folder \
    NagVis-Iconset-Lemon \
    NagVis-Iconset-Medium-HDD \
    NagVis-Iconset-Medium-Thermo \
    NagVis-Iconset-Small-Thermo \
    NagVis-Iconset-Standard-Mini \
    NagVis-Shapes-Server-Dropline \
    NagVis-Shapes-Server-Nuvola \
    nagios-plugins-notify-by-jabber \
    webinject

Post install, run

# chkconfig --level 345 mysqld on
# chkconfig --level 345 snmpd on
# chkconfig --level 12345 rsyslog on

After the installation, delete isoFAN.repo

# rm /etc/yum.repo.d/myiso.repo 
# umount /mnt/isoFAN

Open your browser and enter the FAN IP's : http://IP_FAN2.0/ For authentification, use login “nagiosadmin” and password “nagiosadmin”.