console scrolling is enabled by default in GENERIC kernels.
You can use it with SHIFT+PgUp/PgDown.

The Guide should be updated, to cover this.

2007/1/28, matthew sporleder <msporleder@gmail.com>:
> On 1/28/07, Vlad GURDIGA <gurdiga@gmail.com> wrote:
> > Hello,
> >
> > In text mode, in Linux there is Shift+PgUp/PgDown to scroll up and
> > down the console. In FreeBSD there is ScrollLock/Pause to "freeze" the
> > console and then you can use arrow keys or PgUp/PgDown to scroll the
> > console back and forward.
> >
> > Is there anything like this in NetBSD 3.1?
> >
>
> Check this out:
> http://www.netbsd.org/guide/en/chap-cons.html#chap-cons-wscons-scrolling
>
> Personally, I like the install and use 'screen'.
>
> _Matt
>