you might need to change this line in OACS5.2 code
packages/acs-bootstrap-installer/db-init-checks-oracle.tcl
proc db_bootstrap_checks { errors error_p } {
--- ---
regexp {^[0-9]\.[0-9]\.[0-9]} [ns_set value $selection 0] match
----
--- } that can only match 9i apart from that i don't see any problem to run oacs
Thaks Madhu
See https://openacs.org/bugtracker/openacs/bug?bug%5fnumber=2961 and its fix, patch # 800.