Finally I was able to get the Welcome screen for OpenAcs installation
The latest problem appears to be in this section of configuration file :
#
# Tcl Configuration
#
ns_section ns/server/${server}/tcl
ns_param library ${serverroot}/tcl
ns_param autoclose on
ns_param debug $debug
# Aolserver 4.5 addition
ns_param nsvbuckets 20 ;# no of buckets to hold nsv's
The serverroot value: /var/lib/aolserver/schoolacs/tcl
whereas ns_getform is located in form.tcl and this is in
/usr/local/aolserver/modules/tcl.
I have copied all the tcl files under /usr/local/aolserver/modules/tcl to ${serverroot}/tcl/modules/tcl.
And I was able to get OpenAcs welcome screen...
Kindly let me know if there is a way to point to multiple locations for ns_param library for tcl configuration in config.tcl or anyother resolution.
Thanks ,
Gunalan