Date: Sat, 03 Nov 2018 17:24:17 -0600 From: Ian Lepore <ian@freebsd.org> To: ticso@cicely.de, Warner Losh <imp@bsdimp.com> Cc: "freebsd-arm@freebsd.org" <freebsd-arm@freebsd.org>, Bernd Walter <ticso@cicely7.cicely.de> Subject: Re: GENERICSD images? Message-ID: <1541287457.52306.13.camel@freebsd.org> In-Reply-To: <20181103225543.GH79858@cicely7.cicely.de> References: <20181103151920.GZ79858@cicely7.cicely.de> <CABx9NuRirD2UdWyDHXOZ8Qavh93JeY--9i%2Bq7vB8Z=3LWMJ6SQ@mail.gmail.com> <20181103191032.GA79858@cicely7.cicely.de> <CANCZdfrKnCJtP3eYo5UKuXct5MfrHUKWebn96uJEEYMLKv5KCA@mail.gmail.com> <20181103225543.GH79858@cicely7.cicely.de>
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On Sat, 2018-11-03 at 23:55 +0100, Bernd Walter wrote: > On Sat, Nov 03, 2018 at 03:18:21PM -0600, Warner Losh wrote: > > > > On Sat, Nov 3, 2018 at 1:11 PM Bernd Walter <ticso@cicely7.cicely.d > > e> 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@cicely7.cice > > > > ly.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). > That's a good simplification. > I already had known about the GENERIC kernel, but this image was new > for > me as I wondered how it is handling the board specific boot code. > > > > > 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... > Would be cool to know when you or someone else find it. > So far searching for GENERICSD only showed several fileservers. > A cool thing that could come of this is a website where you choose your board type and it creates on the fly a burnable image for you to download from the GENERICSD plus the board-specific boot stuff. -- Ian
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