Sorry it appended my reply to older comment so re-posting it.
Thanks Steven. I tried above steps
1 - Checked version, it is WAS 8.5.0.2.
2 - Checked installed.xml
<property name="agent.launch.command" value="/fircosoft/software/IM/tools/imcl"/>
<property name="agent.install.location" value="/XXX/software/IM/tools"/>
<property name="cic.appDataLocation" value="/home/firco_svc/var/ibm/InstallationManager"/>
<property name="accessRights" value="nonAdmin"/>
<property name="cacheLocation" value="/home/firco_svc/IBM/IMShared"/>
3 - Ran the below command but getting error.
./imcl listInstalledPackages -dL /home/firco_svc/var/ibm/InstallationManager
ERROR: Error restoring Installation Manager state.
ERROR: The running Installation Manager's accessRights mode (accessRights=admin) is incompatible with the "/home/firco_svc/var/ibm/InstallationManager/installRegistry.xml" install registry's accessRights mode (accessRights=nonAdmin).
I can can see the accessRights are non admin in the installRegistry.xml, tried changing it to admin but that didn't work either..
<?xml version='1.0' encoding='UTF-8'?>
<?installRegistry version='1.7.1'?>
<installRegistry>
<property name='agent.launch.command' value='/XXX/software/IM/tools/imcl'/>
<property name='agent.install.location' value='/fircosoft/software/IM/tools'/>
<property name='cic.appDataLocation' value='/home/firco_svc/var/ibm/InstallationManager'/>
<property name='accessRights' value='nonAdmin'/>
<property name='cacheLocation' value='/home/firco_svc/IBM/IMShared'/>
#Support#SupportMigration#WebSphereApplicationServerforIBMi