I want to deploy the Magento Core Files (Magento CE through modman. However, when the file app/Mage.php is symlinked, the Magento Shop returns the install page.

When i restore the original file for app/Mage.php, everything works again. First, I supposed the file permissions for the symlinked file are not correct:

File: app/Mage.php

  • Symlinked: 777
  • Original: 664

However, it is impossible to change the file permission of a symlink. In Magento Backend, the setting "dev/template/allow_symlink" is true.

The file app/Mage.php defines an incorrect magento root folder, when it is located for example at magento_root/.modman/Magento_Core/app/Mage.php and symlinked into magento_root/app/Mage.php. I could reproduce this with a magento vanilla installation.

Does anybody have an idea to overcome this issue?

  • Are you sure, that the original file and the symlink have the same owner? Jul 15, 2015 at 13:27
  • Yes, they have the same owner.
    – jhoelzl
    Jul 15, 2015 at 14:48
  • I noticed that the symlink for app/Mage.php only works when the original file is in the same folder. For example this works fine: app/Mage.php points to app/Mage_original.php. However, my original file is located in a separate modman folder.
    – jhoelzl
    Jul 15, 2015 at 15:11
  • 1
    It can be a problem, if magentos __DIR__ get problems Jul 15, 2015 at 17:59
  • @FabianBlechschmidt: I think you are right; at the top of the file Mage.php, the code line define('BP', dirname(dirname(__FILE__))); unfortunately defines the magento root in the modman folder instead of the original magento root.
    – jhoelzl
    Jul 16, 2015 at 5:41

2 Answers 2


The important file local.xml must exist in the deployed modman-Folder, otherwise Magento returns the install page: magento_root/.modman/Magento_Core/app/etc/local.xml.

Magento does not seems to use the symlinked file magento_root/app/etc/local.xml.

  • Be careful, you might get problems in other places as well, where Magento uses BP or relative paths. Deploying the core itself with modman is not advisable. Relevant: twitter.com/fschmengler/status/601728826926858240 Jul 20, 2015 at 6:18
  • OK, thank you. I though this is "Best Practise", but you are right, then i get problems with custom template files.
    – jhoelzl
    Jul 20, 2015 at 6:36
  • Actually now i found what i want: The modman module "Magento_Core" is deployed through copying files and all other modman modules are deployed through symlink. The command modman skip Magento_Core prevents this module to be deployed when the command modman deploy-all is performed. Works fine!
    – jhoelzl
    Jul 20, 2015 at 12:02
  • Nice find, I did not know about modman skip Jul 20, 2015 at 12:06

I'm assuming you're using apache make sure that is configured to follow symlinks as well. FollowSymLinks is the what you're looking for.

  • Thank you for this idea. I looked at my apache configuration (version 2.4.12), but i have already enabled this configuration: <VirtualHost *:80> DocumentRoot /var/www/magento ServerName dev.mydomain.local com ErrorLog logs/magento-error_log CustomLog logs/magento-access_log common <Directory /var/www/magento> Options All AllowOverride All Order allow,deny Allow from all </Directory> </VirtualHost>
    – jhoelzl
    Jul 16, 2015 at 10:27

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