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Date: Mon, 3 Aug 2015 12:01:48 +0200
From: Edward Tomasz =?utf-8?Q?Napiera=C5=82a?= <trasz@FreeBSD.org>
To: Julian Elischer <julian@freebsd.org>
Cc: Adrian Chadd <adrian.chadd@gmail.com>,
 Dirk-Willem van Gulik <dirkx@webweaving.org>,
 "freebsd-hackers@freebsd.org" <freebsd-hackers@freebsd.org>
Subject: Re: pivot_root() and FreeBSD
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On 0803T1745, Julian Elischer wrote:
> On 8/3/15 3:13 PM, Adrian Chadd wrote:
> > .. and it won't work for upgrading routers, as the MIPS things don't use loader.
> 
> it can also be compiled into the kernel...
> I've done that... a picobsd filesystem linked into the kernel

Would be better to just make it work for MIPS :-)

How do MIPS machines boot?  Are they able to load the kernel and modules?
If so, making it load md image shouldn't be that hard - it's just like
loading modules, just marking them as non-kld type.