ubldr

[Ian Lepore]

On Wed, 2019-04-17 at 09:06 +0100, Balanga Bar wrote:
> Thanks for the link. I notice this bit:-
> 
> ubldr
> 
>    - [ need more here too ]
> 
> so am none the wiser really. I get the impression that ubldr is a
> fairly
> recent introduction, ie I don't think it got built under FreeBSD 9...
> 

I had a feeling that wiki page would be too out of date to be useful. I
wrote most of that before ubldr came into existance; it mostly
describes how old arm systems booted without using loader(8) at all.

So, the short answer is:  ubldr is loader(8) compiled with options to
use U-Boot "API" services as a bios.  It requires that u-boot be built
with the CONFIG_API option.  In u-boot, you load ubldr as if it were
the kernel, and it uses uboot API calls to find and load the kernel and
modules.

-- Ian

> On Wed, Apr 17, 2019 at 2:20 AM Hyun Hwang <hyun at caffeinated.codes>
> wrote:
> 
> > On Tuesday, April 16, 2019, 6:53 PM (UTC-04:00), Balanga Bar <
> > balanga.bar at gmail.com> wrote:
> > > Can anyone tell me what ubldr is or provide a link to info about
> > > it?
> > 
> > ubldr is u-boot loader. Please refer to [this article](
> > https://wiki.freebsd.org/FreeBSD/arm/BootProcess).
> > --
> > Hyun "Harold" Hwang
> > 
> 
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