"Greg Sabino Mullane" <greg@turnstep.com> writes:
> Having to recompile initdb.c is probably not an option.
initdb is just a shell script in existing releases.
> Sybase and Oracle both installed properly without having to change shmmax.
My bet is that they ate all available shmem, leaving none for Postgres...
have you checked ipcs(1) to see what's already allocated?
regards, tom lane