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Date:      Sat, 5 Sep 2015 17:56:31 -0700
From:      Tim Kientzle <tim@kientzle.com>
To:        freebsd-arm <freebsd-arm@freebsd.org>
Subject:   Re: keeping up-to-date on RPi2/FreeBSD11
Message-ID:  <1DCEFAC1-E185-4E4B-B407-7C465079B62B@kientzle.com>
In-Reply-To: <20150905234829.GA6572@potato.growveg.org>
References:  <20150905125316.GB80713@potato.growveg.org> <20150905133519.c60e316b90b3205a5d482c01@ulrich-grey.de> <55EB46D2.1040003@blarg.com> <20150905234829.GA6572@potato.growveg.org>

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> On Sep 5, 2015, at 4:48 PM, John <freebsd-lists@potato.growveg.org> =
wrote:
>=20
> On Sat, Sep 05, 2015 at 12:47:30PM -0700, kah42pub wrote:
>=20
>> For what it is worth, these steps work for me to update an RPI2 in
>> place. A serial cable is definitely required. Most of this was taken
>> from the FreeBSD documentation. I've omitted steps that are specific =
to
>> my configuration.
>=20
> [snip - thanks for the info btw]
>=20
>> This process recently took me up to 11.0-CURRENT r287441 without a
>> hiccup on the RPI2. Hope it helps. If anyone sees anything obvious =
that
>> I didn't do that I should have for the upgrade process, feel free to
>> speak up.
>=20
> Will your method work for an image made by crotchet - ie will it boot
> the right kernel, does it update what crotchet installed? The original
> install was =
http://download.raspbsd.org/FreeBSD-armv6-11.0-RPI2-286947.img.gz

Yes, it will work.

The reason there's not a lot of documentation about upgrading =
FreeBSD-arm in-place is simply that it's exactly the same as i386 or =
amd64.  All the existing documentation applies exactly.

There are a few minor bits of trivia:

* It takes a while: allow 15 hours on an RPI2, 40 hours on a BeagleBone =
Black.

* Crochet normally sets the KERNCONF in /etc/sys.mk so you should not =
need to set it manually.

* If you want to tweak the kernel configuration, it's in the usual =
place:  /usr/src/sys/<platform>/conf/<config>

* 1GB RAM is not enough for buildworld, so you'll need to configure swap =
space.  I normally aim for ram + swap >=3D 1.5GB, so at least 512MB on =
an RPI2.

* You also need to make sure you have enough disk space:  I think I've =
successfully done a full buildworld with an 8GB SD card.  16GB is ample.


>=20
>> Also, powerd definitely works on RPI2. Having it enabled (allowing
>> stepped up CPU speeds under load) decreases the build world time by
>> hours - at least for me. Your mileage may vary.
>=20
> yep, I have powerd enabled now rather than setting turbo in=20
> /etc/sysctl.conf. I also have powerd_flags=3D"-a hiadaptive" though am
> unsure if these flags have any effect on this arch.
>=20
> thanks,
> --=20
> John=20
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