Roy Wright <roy@(protected):

> If you use dispatch-conf, check /etc/config-archive for your previous
> version. You might get lucky...

It was not there for me. conf.d/net.example was in there but not
conf.d/net which contained the pre-baselayout-2 network
configuration. My main complaint was that there was, at the time (it has
since been added to the upgrade guide), no warning that /etc/conf.d/net
would be hosed and replaced by a skeleton.
--
gentoo-user@(protected)