Copy stable/10@r272459 to releng/10.1 as part of
the 10.1-RELEASE process.

Approved by: re (implicit)
Sponsored by: The FreeBSD Foundation

Copy head (r256279) to stable/10 as part of the 10.0-RELEASE cycle.

Approved by: re (implicit)
Sponsored by: The FreeBSD Foundation

Major cleanup of PicoBSD startup scripts, which now should be
closer to doing "the right thing".

The structure is now the following:

* /etc/rc (from MFS) loads the rest of /etc and /root from
/fd and then from floppy (if present), then transfers control
to /etc/rc1

* /etc/rc1 loads defaults from /etc/rc.conf.defaults, tries to
set the hostname basing on the MAC address of the first ethernet
interface, and then sources /etc/rc.conf and /etc/rc.conf.local
for local configurations

* The rest of the startup process is then performed (rc.network and so on).

Everything except the initial /etc/rc (from MFS) can be overridden with
a local version loaded from floppy. But in most cases, you should only need
to customize the following files in /etc:

rc.conf rc.firewall hosts

Previously there were a number of inconsistencies in the calling
between files, and also a lot of clutter in rc.conf and rc.firewall.
Also, "rc1" was called "rc" and would overwrite the initial /etc/rc
from MFS, making it really hard to figure out what was going on in
case of bugs.

Implement a more efficient way to assign addresses: read /etc/hosts
only once into an array of shell variables, and then scan the array
to find entries matching the MAC address.
Associative arrays would really be handy here...

Better code to scan the ethertable.

Make fetch_mask return ${default_mask} if entry not found.
Add a couple of diagnostic messages.

Add functions to lookup in /etc/networks and set interface
addresses, invoke them from /etc/rc

Enable the use of wildcards in the #ethertable section of
/etc/hosts to map MAC addresses to hostnames.

Main use is to get addresses for vmware interfaces.

MF4S: Syncronise with Luigi's work in -stable.

login.conf: we don't want coredumps on picobsd
rc.conf: make the system recognise the MAC address and assign an IP
automatically from /etc/hosts (or ask the user)
sshd_config: don't do x11 forwarding.

Cleanup of the default floppy tree for PicoBSD builds.

Approved-by: jordan

$Id$ -> $FreeBSD$

Major PicoBSD update by luigi with some debugging help from myself.

. Now builds on -STABLE (-CURRENT is broken due to bugs)
. etc directory contents centralized instead of in each
type directory (can exclude & override as desired)
. Removed extraneous language files (lang files for rc really necessary?)
. dialog-based build tool with support for custom floppy builds
. MFS image loads as a mfs_root module instead of compiled into kernel

THIS IS BROKEN ON CURRENT. I'll MFC to -STABLE immediately following.
luigi tells me I have an OK from jkh on the MFC.

Submitted by: luigi