Solution : https://service.sap.com/sap/support/notes/111085 (SAP Service marketplace login required)
Key words : 
library     type      text                 qsys        sys                 qsys2       sys                 qhlpsys     sys                 qusrsys     sys                r3<sid>data cur       data library                r331iopt    usr, ftpftpbincd general/r3server/patches/rel30f/os400/v4r2m0get r3install r3install/r3install, kernel library                  r3install   usr                r330fopt    usr, kernel library                  qtemp       usr                 qgpl        usr, wrong os/400 version v4, -called post install step, product library r3install, open file <dir>/v4r2m0, additional key words installation, command            edtf '/tmp/v4r2m0
Related Notes : 
       
| 83292 | Releases and PTFs for R/3 on AS/400 | 
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| 61915 | INST: AS/400 post-installation steps 3.0F |