Peter, your solution fixed the startup problem (sorry for not noticing it at first).
But then I still get stuck at the fourth installation screen, "OpenACS Installation: Set System Information", when clicking the "Set System Information ->" button these errors show up in the log:
[16/Jan/2003:17:20:41][9700.57352][-conn4-] Error: Error sourcing /home/efnisvaki/web/openacs-head/packages/acs-bootstrap-installer/installer/site-info-2.tcl:
Database operation "0or1row" failed (exception NSDB, "Query was not a statement returning rows.")
while executing
"ns_pg_bind 0or1row nsdb0 {
select apm__set_value(
:package_id,
:parameter,
:value
..."
[snip]
Does noone else get this error?