Solution : https://service.sap.com/sap/support/notes/661960 (SAP Service marketplace login required)
Key words : 
/platforms -> product availibility matrix update r3dllins filebefore, sap backup library legato storage manager backup tool, respective sys/exe/run directory, <sapsid> -> command file editor r3sedit, 6d section 'post-installation activities', 1i sr1 ext-kernel cd, 40b_com kernel ext-kernel cd, dynamic link libraries r3dllins, post-installation steps listed, wrong kernel cd label
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