> I wish to build (compile) kernel.
> 
> I followed "Build-HOWTO" documment, and found a tar file,
>         NetBSD/NetBSD-current/tar_files/src/sys.tar.gz
> on certain FTP sites.  Is it a right kernel source?

This is probably the right source.

> As described in "Build-HOWTO", I placed a command, "config.new .....",
> but failed.  There is not "config.new" command.

If the HOWTO still says config.new, it's a little out of date.  The 
config.new program has been renamed to config, so just do a

config KERNELNAME

instead.

I hope this helps.

Later.

-- 
Colin Wood                                      ender@is.rice.edu
Consultant                                        Rice University
Information Technology Services                       Houston, TX