[xwiki-users] Migration from 5.4.5 Standalone to 6.3 Tomcat

Hi, in our company we used the standalone version of XWiki for testing and are very satisfied with it so we want to migrate to the new version and a more robust setup. The setup is Windows Server 2003 R2 (sadly only 32 bits) with Apache 2.4, MySQL 5 and Tomcat 7. XWiki 6.3 is setup now including a Wiki Template so I'd like to migrate the data I exported as XAR from the 5.4.5 standalone instance. My approach was exporting data from 5.4.5, creating the Wikis using the template and importing the spaces and pages from the XAR export. The issue I'm facing is Java heap size which constantly gets in my way. As we're on a 32 bits system I can only assign ~1.2 GB of memory (the server has 4GB). This limitation makes it impossible to import the data into the new setup. I tried general export/import via administration page and the various options using the Admin Tools Application but on one of both ends I always get the out of memory error. - Using normal export/import: Export works but import throws the error - Admin Tools - Export pages and spaces: Export works but import throws the error - Admin Tools - Large Export on Disk: the heap size error is thrown Do you have any suggestions/hints on how I can migrate the spaces and pages I have in the 5.4.5 setup to the 6.3 one? Thanks in advance, Dennis