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PHP 7.2 to 7.4 Upgrade Instructions for CentOS Stream 8

Purpose

This document is intended for use by Nagios Administrators who wish to update their version of php 7.2 to php 7.4 on a CentOS Stream 8 system or an EOL CentOS 8 system.

Enable CentOS 8 vault repos (For EOL CentOS 8 Only)

Since CentOS 8 is now EOL the supporting repos have been moved to CentOS’s vault area. We will need to enable these repos for the upgrade as follows:

 

mkdir /etc/yum.repos.d/old
mv /etc/yum.repos.d/*.repo /etc/yum.repos.d/old/

 

cat << \EOF > /etc/yum.repos.d/CentOS-vault.repo
[C8-BaseOS]
name=CentOS 8 - BaseOS
baseurl= https://vault.centos.org/8.5.2111/BaseOS/$basearch/os/
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-centosofficial
enabled=1
metadata_expire=never
[C8-AppStream]
name=CentOS 8 - AppStream
baseurl= https://vault.centos.org/8.5.2111/AppStream/$basearch/os/
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-centosofficial
enabled=1
metadata_expire=never
[powertools]
name=CentOS 8 - PowerTools
baseurl= https://vault.centos.org/8.5.2111/PowerTools/$basearch/os/
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-centosofficial
enabled=1
metadata_expire=never
EOF

 

cat << \EOF > /etc/yum.repos.d/epel.repo
[epel]
name=Extra Packages for Enterprise Linux $releasever - $basearch
# It is much more secure to use the metalink, but if you wish to use a local mirror
# place its address here.
#baseurl= https://download.example/pub/epel/$releasever/Everything/$basearch
metalink= https://mirrors.fedoraproject.org/metalink?repo=epel-$releasever&arch=$basearch&infra=$infra&content=$contentdir
enabled=1
gpgcheck=0
countme=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-EPEL-8
EOF

 

PHP Upgrade process

From the command line on the XI server:

dnf install https://dl.fedoraproject.org/pub/epel/epel-release-latest-8.noarch.rpm
dnf install https://rpms.remirepo.net/enterprise/remi-release-8.rpm
dnf module list php

 

Disable the 7.2 module that is enabled:

dnf module reset php:7.2
dnf module list php
dnf module enable php:remi-7.4
dnf install php php-imap php-opcache php-devel php-gd php-ldap php-mbstring php-pdo  php-pdo-dblib php-mysqlnd php-pgsql php-pear
sed -i "s:;date.timezone =.*:date.timezone = ${PHPTZ}:" /etc/php.ini
cd /tmp
rm -rf /tmp/nagiosxi
wget https://assets.nagios.com/downloads/nagiosxi/xi-latest.tar.gz
tar zxf xi-latest.tar.gz
cd /tmp/nagiosxi
rm -rf /etc/php.d/sourceguardian.ini
./init.sh
sed -i '/^PHP script/d' xi-sys.cfg
sed -i '/^1)/d' xi-sys.cfg
sed -i '/^2)/d' xi-sys.cfg
sed -i '/^3)/d' xi-sys.cfg
./install-sourceguardian-extension.sh

 

Edit /etc/php.ini and add 'extension=ixed.7.4.lin' directive (highlighted yellow):

  ;;;;;;;;;;;;;;;;;;;;;;

; Dynamic Extensions ;

;;;;;;;;;;;;;;;;;;;;;;

; If you wish to have an extension loaded automatically, use the following

; syntax:

;   extension=modulename

; For example:

;   extension=mysqli

;

; When the extension library to load is not located in the default extension

; directory, you may specify an absolute path to the library file:

;   extension=/path/to/extension/mysqli.so

;

; Note : The syntax used in previous PHP versions ('extension=<ext>.so' and

; 'extension='php_<ext>.dll') is supported for legacy reasons and may be

; deprecated in a future PHP major version. So, when it is possible, please

; move to the new ('extension=<ext>) syntax.

;;;;

; Note: packaged extension modules are now loaded via the .ini files

; found in the directory /etc/php.d; these are loaded by default.

;;;;

; added for php 7.4

extension=ixed.7.4.lin

 

Save the /etc/php.ini.

Restart the server:

shutdown -r now
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