Please check part one of this blog post first!
The media management extension DAM is no longer supported in TYPO3 6.2 LTS, the functionality will be replaced by the new file abstraction layer – FAL. The challenge is to migrate the existing DAM structures to FAL without losing any data and file relations.
Caution: the following tasks must be run AFTER the migration to TYPO3 6.2 LTS (and with all DAM and related extensions uninstalled)
Upgrading an existing TYPO3 4.x installation to TYPO3 6.2 LTS can be a challenge due to massive refactoring of the core in 6.2 and especially the new file management layer (File Abstraction Layer – FAL). Besides upgrading the core system, several third-party-extensions need to be migrated or replaced by alternatives. There are some essential ones which will no longer work on 6.2. This little step-by-step guide is just a rudiment documentation of the pitfalls and workarounds in our migration process. It is NOT a complete migration guide, but addresses special issues like DAM to FAL migration in combination with tt_news, replacement of deprecated extensions like css_filelinks and tips for migration of custom extbase extensions built with TYPO3 4.x.