adapcctl.sh: exiting with status 204

Hi,
Happy New Year to all readers!
Recently I was cloning an R12 instance. After the cloning part was done using rapid clone, the apache failed to come up and was reporting the following error:
adapcctl.sh: exiting with status 204
However, there were no errors in error_log or in the adapcctl.txt log file that is generated as part of the startup script. Further digging into the issue revealed the following error in the HTTP_Server~1 log file under $LOG_HOME/ora/10.1.3/opmn:
Syntax error on line 17 of /apps/local/FIEST1/inst/apps/FIEST1_iftg-01/ora/10.1.3/Apache/Apache/conf/mod_osso.conf:Unable to open /apps/local/FIEST1/inst/apps/FIEST1_iftg-01/ora/10.1.3/Apache/Apache/conf/osso/FIEST1_iftg-01_osso.conf.

It turns out that this issue is because the source is SSO enabled and the target was not yet SSO enabled. Running $FND_TOP/bin/txkrun.pl -script=SetSSOReg -removereferences=Yes in target instance did not help either.

Fix:
Run detailed steps to deregister OID/SSO registration. This will run autoconfig as part of the deregistration process, which will generate the correct mod osso files. Basically, the s_mod_osso_conf_comment should have # (comment) in xml file before running autoconfig (which will be the result of running deregistration steps).

The apache came up fine subsequently.

- Aravind Kamath Posral