Update existing system from sources

[Stathis Kamperis <ekamperi%gmail.com@localhost>]

Hi all.

Does anyone have a working set of instructions on how to upgrade an
existing system from sources ? Specifically from 5.0.1 to netbsd-5.
I used to follow this
http://www.netbsd.org/docs/current/#updating-from-source, but now it
has been replaced by this:
http://www.netbsd.org/docs/guide/en/chap-updating.html which doesn't
work. It misses the part where tools are supposed to be built.

Also, can I retrieve an older revision of the former link ?

Thanks

Best regards,
Stathis