Solution : https://service.sap.com/sap/support/notes/492199 (SAP Service marketplace login required)
Key words : 
log by2=> sql error -709   performing con [dblink#1 @ 419] [dblink 0419 ] log by0=> connect, file permissions16/sep/03  ii  sapinst database devspace size definition28/aug/03  iii sapinst dialog instance, 5 support release 1sap supply chain management / supplier relationship management 4, 18/mar/03  ii  system devspace entry incorrectly interpreted13/mar/03  ii  memory entry, system copy20/feb/03  ii   wrong migration key message14/feb/03, 3204/mar/05  iii missing xuser entries28/feb/05  ii  redhat 3, sh <inst cd>/unix/common/install/ada/dbenv, csh <inst cd>/unix/common/install/ada/dbenv, /sapdb/<dbsid>/dbsys/sys/sapdb/data/config/<dbsid>, ======================================================================= iii post installation =======================================================================04 mar 05  missing xuser entriesproblem
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