PHP Downgrade¶
On ubuntu distribution above 20.04, php 8 or above is installed when running the install script. To use RemotelabZ we have to downgrade this version to PHP 7.4.
Front Side¶
Warning
This must be done after running /bin/install_requirement.sh
First, you need to know which php version you use by entering this command.
php --version
on this example, we are on php 8.1
PHP 8.1.2-1ubuntu2.19 (cli) (built: Sep 30 2024 16:25:25) (NTS)
Copyright (c) The PHP Group
Zend Engine v4.1.2, Copyright (c) Zend Technologies
with Zend OPcache v8.1.2-1ubuntu2.19, Copyright (c), by Zend Technologies
Then you must remove this version and all dependencies
apt purge php8.1-cli.
Once done we will install php 7.4 and all dependencies required for remotelabz Front to work.First we need to add the corresponding repository.
sudo add-apt-repository ppa:ondrej/php
sudo apt update
apt install php7.4 php7.4-bcmath php7.4-curl php7.4-gd php7.4-intl php7.4-mbstring php7.4-mysql php7.4-xml php7.4-zip php7.4-amqp
Worker Side¶
Warning
This must be done before running sudo ./install
On recent distributions, php 8 or above is installed by default.
To use RemotelabZ we have to downgrade this version to PHP 7.4. First, you need to know which php version you use by entering this command.
php --version
on this example, we are on php 8.1
PHP 8.1.2-1ubuntu2.19 (cli) (built: Sep 30 2024 16:25:25) (NTS)
Copyright (c) The PHP Group
Zend Engine v4.1.2, Copyright (c) Zend Technologies
with Zend OPcache v8.1.2-1ubuntu2.19, Copyright (c), by Zend Technologies
Then you must remove this version and all dependencies
apt purge php8.1-cli.
Once done we will install php 7.4 and all dependencies required for remotelabz Front to work.First we need to add the corresponding repository.
sudo add-apt-repository ppa:ondrej/php
sudo apt update
Then we have to edit the install script on the remotelabz-worker directory
cd ~/remotelabz-worker/
nano install
Change these lines
apt-get install -y ntp apache2 php zip unzip qemu qemu-kvm openvswitch-switch git python3 python3-pip python3-openvswitch php-xml php-curl php-amqp logrotate lxc screen build-essential cmake libjson-c-dev libwebsockets-dev curl exim4
To
apt-get install -y ntp apache2 php7.4 zip unzip qemu qemu-kvm openvswitch-switch git python3 python3-pip python3-openvswitch php7.4-xml php7.4-curl php7.4-amqp logrotate lxc screen build-essential cmake libjson-c-dev libwebsockets-dev curl exim4