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Status Not under consideration
Workspace Db2
Components Other/Unknown
Created by Guest
Created on Mar 3, 2016

db2set -g DB2INSTDEF instance incorrect install version makes global registry unusable

db2set -g DB2INSTDEF instance incorrect install version makes global registry unusable.

This can be caused by an upgrade from Version 9.7 to 10.5 or accidently by someone making a mistake setting an instance from another software version to be DB2INSTDEF.

repro:

On aix V 6.1

Have 2 versions installed say V9.7 Fixpack 3a and V 10.5 Fixpack 5

then

Install the software for V10.5 in
/prj/db2/DB2_SRC/DSR_10-5-5
install the software for V97 in

/prj/db2/DB2_SRC/DSR_9-7

create an instance for V9.7 and call it inst97
create an instance for V10.5 and call it inst105


/prj/db2/DB2_SRC/DSR_10-5-5/adm/db2set -g DB2INSTDEF=inst97


/prj/db2/DB2_SRC/DSR_10-5-5/adm/db2set -g DB2FCMCOMM=TCPIP4 ; print $?
65

as you can see the db2set fails and keeps failing.

the last line from truss says:

truss /prj/db2/DB2_SRC/DSR_10-5-5/adm/db2set -g DB2FCMCOMM=TCPIP4
....
_exit(-5055)


So it errors out with rc 5055 i think.

To resolve this one needs to


db2greg -delvarrec service=DB2GPRF,variable=DB2INSTDEF,value= inst97,installpath=/prj/db2/DB2_SRC/DSR_10-5-5

Can you please adress this issue. It could also be caused by an upgrade of a 97 instance which had DB2INSTDEF set...