bsd.rd for FreeBSD install'

Jerry McAllister jerrymc at
Mon Mar 2 10:28:32 PST 2009

On Mon, Mar 02, 2009 at 06:19:57PM +0000, Ricardo Jesus wrote:

> new_guy wrote:
> >You misunderstand. I want to install FreeBSD from a ramdisk image (bsd.rd).
> >Is that possible? It's basically a small kernel that boots the machine,
> >formats the hard drive, setups root and installs the operating system over
> >ftp. 
> >
> If that's what you want I definitely misunderstood. Maybe someone of the 
> list can give a hand and help you out.

Wel, that is what a fixit image is - a boot to a ramdisk image.
They call it md  (memory disk)  in FreeBSD land.  Check man pages
and some more stuff online at various sources.

The only problem is that I don't know if the fixit includes sysinstall.
You could try it.     I would guess that the install image is build in 
memory too and runs from there rather than from the CD.  So, it should 
be possible with some tinkering - if you have enough memory to run a
sysinstall completely from memory.   You would then pretty much need 
to do an install over the net - which you would probably do anyway.

So, your big problem, if that works, is figuring out how to create that 
image booted in to the memory disk without some external media to
start it with.

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