Solution : https://service.sap.com/sap/support/notes/989952 (SAP Service marketplace login required)
Key words :
/instguides -> sap netweaver 2004s -> release 2004s -> maintenance -> sps <current_sp_number> -> netweaver 2004s support package stack guide - sps<current_sp_number> update procedure, support packages stack guide, installed trex bia instances, html download procedure, update procedure, trex bi accelerator, existing trex instance, /exe/doc/trexversion, file bia70_29-<key>, installation script 'install
Related Notes :
| 991266 | BIA 7.00: Install throws 'failed to create root directory' |
| 883726 | BIA 7.00: Central Note SAP NetWeaver BI accelerator |