Hier der Ablauf auf der Shell Ebene.

# Was gibt es Neues.
./mage list-upgrades

Updates for community: 
  Mage_All_Latest: 1.6.2.0 => 1.7.0.0
  Interface_Adminhtml_Default: 1.6.2.0 => 1.7.0.0
  Interface_Frontend_Default: 1.6.2.0 => 1.7.0.0
  Interface_Install_Default: 1.6.1.0 => 1.7.0.0
  Mage_Downloader: 1.6.2.0 => 1.7.0.0
  Mage_Centinel: 1.6.1.0 => 1.7.0.0
  Interface_Frontend_Base_Default: 1.6.2.0 => 1.7.0.0
  Phoenix_Moneybookers: 1.3.0.1 => 1.3.1
  Mage_Compiler: 1.6.2.0 => 1.7.0.0
  Magento_Mobile: 1.6.0.0.22.1 => 1.7.0.0.22.1
  Mage_Core_Adminhtml: 1.6.2.0 => 1.7.0.0
  Mage_Core_Modules: 1.6.2.0 => 1.7.0.0
  Lib_Js_Ext: 1.6.0.0 => 1.7.0.0
  Lib_LinLibertineFont: 2.8.14.0 => 2.8.14.1
  Lib_Js_TinyMCE: 3.3.7.0 => 3.4.7.0
  Lib_Varien: 1.6.1.0 => 1.7.0.0
  Lib_Js_Calendar: 1.51.1 => 1.51.1.1
  Lib_Js_Mage: 1.6.1.0 => 1.7.0.0
  Mage_Locale_en_US: 1.6.2.0 => 1.7.0.0
  Lib_Mage: 1.6.1.0 => 1.7.0.0
  Lib_Js_Prototype: 1.7.0.0.2 => 1.7.0.0.3

# alle Upgrades erzwingen
./mage upgrade-all –-force

...
Package upgraded: community/Lib_Mage 1.7.0.0
Package upgraded: community/Lib_Js_Prototype 1.7.0.0.3


# Sicherheitshalber noch einmal die Caches löschen.
rm -rf var/cache/mage--*
rm -rf var/session/sess_*
rm -rf downloader/pearlib/cache/* downloader/pearlib/download/*

Nun erfolgt ein Aufruf der Page.