Jeffrey Melloy <jmelloy@visualdistortion.org> writes:
> I attempted to install 8.0 RC 2 alongside 7.4.5 on my OS X box, but
> initdb failed with an error about not enough shared memory.
Don't forget that both shmmax and shmall may need attention ... and,
just to confuse matters, they are measured in different units.
regards, tom lane