GENERICSD images?

[Warner Losh]

On Sat, Nov 3, 2018 at 1:11 PM Bernd Walter <ticso at cicely7.cicely.de> wrote:

> On Sat, Nov 03, 2018 at 11:51:38AM -0700, Russell Haley wrote:
> > On Sat, Nov 3, 2018 at 8:28 AM Bernd Walter <ticso at cicely7.cicely.de>
> wrote:
> >
> > > When and how would you use the GENERICSD images?
> > > I assume they have a generic kernel, but do they need a specific u-boot
> > > installed before they can get used?
> > > What systems are supported?
> > >
> >
> > Hi Bernd,
> >
> > I could be mistaken, but I think you are referring to the SD images that
> > can be downloaded for various Arm boards found here:
> > https://www.freebsd.org/where.html
> >
> > See the SD Image column for each currently supported FreeBSD version.
> These
> > images are for "well supported" Arm boards and are an easy way to get up
> > and running. To apply an image to an SD card, I typically use
> > xzcat <img-name-here>.img.xz | dd of=/dev/da0 bs=1M
> >
> > where ./dev/da0 is whatever device your SD card is found at (check dmesg
> if
> > you're not sure. "geom part list /dev/da0" can also be helpful )
> >
> > UFS will automatically grow the partition to the size of the SD card on
> > first boot.
> >
> > If you wish to create your own image, you can look at crochet (a build
> too
> > written in bash) or there is an excellent write up by Udit on building
> > custom images here:
> >
> http://uditagarwal.in/index.php/2018/04/17/building-freebsds-sdio-driver-for-beaglebone-black/
> >
> > Hope that helps?
>
> No, I didn't ask about those images in general, I specifically asked about
> the use case of the GENERICSD image.
> AFAIK crochet isn't advised anymore.
> But the link is interesting, although unrelated to my question and it is
> specifically about beaglebones - Allwinner based boards have to be handled
> differently as they expect their bootcode at a specific media location.
>

We now have a GENERIC kernel. This image is built with that kernel. You're
expected to roll your own u-boot into this image for the board you are
using. There are several u-boot ports that are known to work (or worked at
one time).

There's a script that will add u-boot for the board based on metadata the
port installs, but I'm having trouble finding it at the moment to give you
more specifics...

Warner