Here you can find our experience in installing Magento on CentOS 5.4 that we decided to share while there is some problems resolving steps.

Before we start we need to upgrade the actual version available in CentOS 5.4 Official Release of PHP, which is version 5.1, to version 5.2 or later (PHP version 5.3 in our case), to be able to install and work with Magento.

To be safe and make things easily we will use YUM as Package Management Software. We assume that you have YUM installed and running.

Update PHP 5.1 to 5.3 under CentOS 5.4 using YUM:

First we need to make use of the RPM maintained by Remi Collet, here is the code to execute under bash to get it installed but disabled by default:

wget http://download.fedora.redhat.com/pub/epel/5/i386/epel-release-5-3.noarch.rpm
wget http://rpms.famillecollet.com/enterprise/remi-release-5.rpm
rpm -Uvh remi-release-5*.rpm epel-release-5*.rpm

now we will update PHP and related libraries:

yum --enablerepo=remi update php php-* mysql-*

Using YUM to install MBSTRING for PHP 5.*:

 yum --enablerepo=remi install php-mbstring

Using YUM to install MCRYPT for PHP 5.*:

 yum --enablerepo=remi install php-mcrypt

Using YUM to install GD for PHP 5.*:

 yum --enablerepo=remi install php-gd

Using YUM to install DOM for PHP 5.*:

 yum --enablerepo=remi install php-dom

At this stage we have the system requirements asked by Magneto, we will copy Magento to our website, in my case I will put it in Magento directory under the website root.

Actually our PHP version is 5.3 which causes a small compatibility problem with Magento, when you browse to your-website-folder/your-magento-folder/ you should have an error (if you have display_errors enabled in your php, if not click here to know how to activate it) saying this:

For those who have noticed this Fatal error:

Method Varien_Object::__tostring() cannot take arguments in /magento/lib/Varien/Object.php

This is a Magento compatibility issue relatively to php 5.3. To fix it we need to change a couple lines of code in two separate files:

1- in your-website-folder/your-magento-folder/app/code/lib/Varien/Object.php (Line 484) :

Change this:

public function __toString(array $arrAttributes = array(), $valueSeparator=’,’)

to this:

public function __invoke(array $arrAttributes = array(), $valueSeparator=’,’)

2- in your-website-folder/your-magento-folder/app/code/core/Mage/Core/Controller/Request/Http.php (Line 274) :

Change this:

$host = split(':', $_SERVER['HTTP_HOST']);

to this:

$host = explode(':', $_SERVER['HTTP_HOST']);

For those who have noticed this Fatal error:

Warning: include_once(Varien/Autoload.php) [function.include-once]: failed to open stream: No such file or directory in C:\inetpub\wwwroot\app\Mage.php on line 50
Warning: include_once() [function.include]: Failed opening 'Varien/Autoload.php' for inclusion (include_path='C:\inetpub\wwwroot\app\code\local;C:\inetpub\wwwroot\app\code\community;C:\inetpub\wwwroot\app\code\core;C:\inetpub\\wwwroot\lib;.;C:\php5\pear') in C:\inetpub\wwwroot\app\Mage.php on line 50
Warning: include(Varien\Autoload.php) [function.include]: failed to open stream: No such file or directory in C:\inetpub\wwwroot\app\code\core\Mage\Core\functions.php on line 68
Warning: include() [function.include]: Failed opening 'Varien\Autoload.php' for inclusion (include_path='C:\inetpub\wwwroot\app\code\local;C:\inetpub\wwwroot\app\code\community;C:\inetpub\wwwroot\app\code\core;C:\inetpub\wwwroot\lib;.;C:\php5\pear') in C:\inetpub\wwwroot\app\code\core\Mage\Core\functions.php on line 68
Fatal error: Class 'Varien_Autoload' not found in C:\inetpub\wwwroot\app\Mage.php on line 53

If you have this, it is probably caused by a ” Bug ” on the Mage.php file of the pack magento-1.3.2.4.tar.gz.

To resolve it, open the file Mage.php that you can find in your-website-folder/your-magento-folder/app/Mage.php

In line 45, change this:

$paths[] = BP . DS . 'lib';

to this:

$paths[] = BP . DS . 'app' . DS . 'code' . DS . 'lib';

Final Step before getting all prepared for the Magento Installation

Changing Permissions for the Magento Folder

to 777 during installation and 755 after installation.

if you are running locally for the first time and you are new to this environment be careful about SELinux, you can disable it temporarily using

echo 0 >/selinux/enforce

Now you should be up and running ! You can proceed with the configuration. You will need to create a database and a user for Magento. you can follow installation guide or resources on the Internet for that, it’s easily available.

Enjoy, Vote and Comment please !

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