J2EE stack install - ctrun error???

Question

Hello all,
I have done several installations and have never come across an error like this one :-|
The only difference in this case is that I specified to install the J2EE stack only and not the ABAP stack (when installing all of the components only needed the J2EE stack).
When doing the installation, I get an error of :
ERROR: can't change to central Executable-Dir /usr/sap/KDP/SYS/exe/ctrun (No such file or directory)
I saw a /usr/sap/<SID>/SYS/exe/run directory but not a  /usr/sap/<SID>/SYS/exe/ctrun  directory
I have also seen that the "ctrun" directory seems to be  associated with dialog instances (when doing note searches, I have seen this). I have specified that this J2EE server be a central - and not dialog - instance.
Question 1 - Is it possible to have a central system with a J2EE stack only? Or, is the requirement that the central system must have both the J2EE and ABAP stacks?
Any help, hints or advice is greatly desired. Of course, points will be awarded.
TIA
Edited by: Casey Harris on Jan 5, 2009 5:26 PM

Answer 1

Hello all and thanks for the responses
The installation master I am using has the following defined in the CDLABEL.ASC file:
SAP Business Suite 2005
Installation Master for:
SAP NetWeaver 7.0 SR3
SAP ERP 6.0 SR3
SAP SRM 5.0 SR3, SAP SCM 5.0 SR3
SAP CRM 5.0 SR3
Number 51033511                                                      
I found the following link:
http://al-infotech.com/news/2006/12/30/use-sapcpe-for-kernel-update-on-netweaver-2004-as-java-by-yu-nong-zhang-sap/
But the one that seems to help the most is this one:
http://help.sap.com/saphelp_nw04/helpdata/EN/4f/37783021fc11d288cd0000e83539c3/frameset.htm
it speaks of "automatic adjustment".
When doing this installation, I specified that this was to be a CENTRAL instance and not an application server. From my understanding above, it seems that this sapcpe is being ran even though it should not be. Not all of the conditions have been met ... One can see that the error files are in the CENTRAL directory:
ex: sapinst_instdir/ERP/SYSTEM/ORA/ *CENTRAL* /AS
Question 1: Why is the sapcpe being ran when this is not a dialog instance but a central instance?
Question 2: Also, am I correct in understanding that there is no way to set up a central instance that is has the J2EE stack only?? No components were chosen that would require the use of a dual-stack. Only the J2EE stack was chosen.
TIA
Edited by: Casey Harris on Jan 5, 2009 11:20 PM