That bit is easy because I am already running Postfix on the 3.1 server. Also the server has four partitions with user content on different partitions to the OS. thanks, Philip Lars Friend wrote: > > 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 >