Re: how to upgrade from NetBSD 3.1 to 4 ?

         One thing you'll want to read up on before taking this on 
(since you mentioned that this is also your mail server) is 
PostFix.  The default mail server on NetBSD 3.x is Sendmail, and 4.0 
uses PostFix, which while a lot saner to configure and generally more 
trim and fit, it is configured very differently, so you may want to 
have all of your ducks in a row regarding that before you start your 
upgrade and either be prepared to swim upstream and keep using 
sendmail, or have a pretty good idea of what you'll need to do to 
postfix to make it behave as your sendmail used to.

         -lars

At 06:40 PM 3/1/2008, Philip wrote:
>I read the documentation on the netbsd.org site and only suggests 
>one upgrade method, that is to
>boot from a NetBSD 4 CD and upgrade that way.
>The problem is that my broadband firewall / web server / mail server 
>is running NetBSD 3.1 and has
>no keyboard, no monitor, and no CDROM drive. It lives in the 
>cupboard under my stairs. I only access
>it using ssh.
>Is there no other way? like put a netbsd 4 kernel on the drive and 
>reboot it or something
>Booting from CD is going to cause quite a lot of hassle.
>
>thanks for any help, Philip