Solution : https://service.sap.com/sap/support/notes/783594 (SAP Service marketplace login required)
Key words :
installer checks files ownership, prerequisites ep6 sp2 patch 5, sp2 patch installer, manually deploying connectors, manually edit reference, \usr\sap\<instance>, 20 characters long password, unencrypted password, installed solution, installation dialog
Related Notes :
| 835162 | Central Note - Installing Portal Patch 32 for EP 6.0 |
| 774779 | Central Note - Installing Patch 27 for EP 6.0 SP2 |
| 580289 | Central note "Patches and Hotfixes for EP 6.0" |