What platform do you use?

Mattia Rossi mattia.rossi.mailinglists at gmail.com
Fri Aug 8 14:57:07 UTC 2014

Am 08.08.2014 15:35, schrieb Paul Mather:
> On Aug 7, 2014, at 5:34 PM, Warner Losh <imp at bsdimp.com> wrote:
>> On Aug 7, 2014, at 2:34 PM, Sulev-Madis Silber (ketas) <madis555 at hot.ee> wrote:
>>> On 2014-08-05 21:24, John-Mark Gurney wrote:
>>>> I also have a BBW that I occasionally test w/ but since I haven't got
>>>> it netbooting, the cost of building an entire image and writing it to
>>>> SLOW microsd prevents me from testing as much...
>>> I wonder why people like to update their embedded systems by taking card
>>> out, completely overwriting it with new data and putting card back in.
>>> No wonder that it's slow, complex & heedlessly wears out your flash.
>>> If I do this in my BBB I would get myself pissed very soon because of
>>> the effort required. I never bothered to netboot too, because I wanted
>>> to test it in insecure network conditions.
>>> I mean, I don't remember a case where I needed to take HDD to another
>>> machine for upgrade. The issue where it's not practical to compile
>>> something locally is completely unrelated with this, too.
>> make installworld works too, as does extracting the binary sets. The new installer
>> should work, but I’ve not tried it.
> It would be handy for those of us wanting to cross-build FreeBSD/arm
> for someone who is familiar with the build process to give a quick
> example of how to update a FreeBSD/arm installation that is cross-built
> on another system.  In the past, I've had the impression that the build
> infrastructure on the target system sometimes needs to be in alignment
> with the new kernel/world you're trying to install, and so NFS-mounting
> /usr/src and /usr/obj or copying it to the target system fails to yield
> a successful "make installworld" on the target system.  Maybe this is
> no longer the case, as I believe great strides have been made in the
> realm of cross-building.
> Up to now, I have largely used Crochet to build images for my R-PI and
> BBB.  That's okay for initial install, but I'm much more familiar with
> updating from source and would like to do that from then on.  In the
> past, FreeBSD/arm has been too flaky for me to do a native build (I've
> posted here about that in the past), but, besides that, it would be
> nice to cut down the long native build times by cross-building on a
> much faster system.
> I have an R-PI and BBB and would like to cross-build (for update
> purposes) on my FreeBSD/amd64 10-STABLE system.  Could you post a known
> way to do this?  I can NFS-mount from the FreeBSD/amd64 or else have it
> put /usr/src and /usr/obj on an USB external hard drive that I can then
> connect to my R-PI or BBB for updating.  Either is okay with me.
> Thanks in advance.
The way I do it is cross-compiling everything needed on an ssh enabled 
remote machine, and installing it into a folder on that machine with 
On my arm machine then as root I do
"cd /"
"chflags -R noschg *"
"ssh user at host tar -cpf - /destdirfolder/* | tar -xpf - "
And voilà, world is installed.
I then copy the kernel from the obj dir to my boot partition via scp and 
Usually this works.



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