Solution : https://service.sap.com/sap/support/notes/197901 (SAP Service marketplace login required)
Key words : 
directories/usr/sap/put/preexe/usr/sap/put/pretoolsby, nt    <put-dir>\exeunix  <put-dir>/binthen start, directory /usr/sap/put/bin automatically, /usr/sap/put/bin/r3upfor linux, \usr\sap\put\exe\r3upphase xpra_46cin, r3up>              batch job rsupgtab failed  severe error, job count abortedthe batch job writes, accelerating prepare phase cnv_avoidthe execution time, general/r3server/patches/rel46c//<platform>/r3up, source release 31i_comfor sap db versions 7
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