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Red Hat 8

Redhat 8 Installation

Introduction

Please check that the assumptions and requirements documented in the installation overview have been suitably completed.

RHEL Subscriptions

The following RHEL subscriptions are required to be present on the installation server:

To determine the current subscription, run:

yum repolist

This will list the current attached repositories, for example:

repo id                          repo name
rhel-8-for-x86_64-appstream-rpms Red Hat Enterprise Linux 8 for x86_64 - AppStream (RPMs)
rhel-8-for-x86_64-baseos-rpms    Red Hat Enterprise Linux 8 for x86_64 - BaseOS (RPMs)

It is likely, by default, that both appstream and baseos repositories are enabled. To enable codeready, run:

subscription-manager repos --enable codeready-builder-for-rhel-8-x86_64-rpms

Enable the Extra Packages for Enterprise Linux (EPEL) repository:

dnf install https://dl.fedoraproject.org/pub/epel/epel-release-latest-8.noarch.rpm

N-Squared Yum Package Repository

N-Squared provides a RPM repository that is used to provide a number of dependencies that otherwise are not available through standard channels (particularly the n2svcd package itself).

In order to use this repository, set up the N-Squared RHEL yum repository by creating a record for it in the file:

vi /etc/yum.repos.d/nsquared.repo

Add the following content to the file with access credentials that are provided by N-Squared:

[nsquared]
gpgcheck=1
enabled=1
name=N-Squared Software Releases
baseurl=https://<username>:<password>@www.nsquared.nz/rpm/rhel/8

Import the N-Squared GPG key for the RPM packages downloaded from our Yum repository

rpm -import https://nsquared.nz/RPM-GPG-KEY-nsquaredsoftware.pub

Clean all the existing repositories to update yum:

yum clean all

Update the available repositories to refresh the available package list:

yum update

Note that organisational security or operational guidelines might require our repository to be accessed through a local satellite repository, rather than direct as shown here.

Pre-Requisite Packages

The n2svcd package has a number of pre-requisites.

Install core packages:

yum install epel-release lua lksctp-tools \
rsyslog rsyslog-snmp net-snmp-libs \
htop net-snmp net-snmp-utils mailcap sysstat

Note the usage of epel-release; this core package acts as yum repository extension package that allows access to additional Perl packages that would otherwise require manual installation.

Install core Perl packages:

yum install \
    perl-Data-Dumper \
    perl-Error \
    perl-HTTP-Message \
    perl-JSON \
    perl-List-MoreUtils \
    perl-TermReadKey \
    perl-Test-Differences \
    perl-TimeDate \
    perl-URI \
    perl-Sys-Syslog \
    perl-Digest-SHA \
    perl-IO-Socket-SSL \
    perl-Crypt-Eksblowfish \
    perl-Clone \
    perl-DateTime \
    perl-Time-HiRes \
    perl-JSON-XS \
    perl-Module-Load \
    perl-XML-LibXML \
    perl-boolean \
    perl-Math-Complex \
    perl-Math-BigInt \
    perl-DBI

Package Installation

N2LUA

N-Squared provides a customised Lua package for N2SVCD. Install this:

yum install n2lua

N2SVCD

Once all pre-requisites are installed as described above, the n2svd package is to be installed. The latest released version of N2SVCD can be installed via yum:

yum install n2svcd

Once installed, follow the post-installation tasks, and then configure N2SVCD by following the configuration documentation.