[tbot] Question regarding BBB (beagle bone black) tbot deployment

Tue Jan 15 10:37:01 UTC 2019

On Tue, 15 Jan 2019 10:56:51 +0100
Lukasz Majewski <lukma at denx.de> wrote:

> Hi Stefano,
> 
> > Hallo Heiko, Lukasz,
> > 
> > On 15/01/19 08:56, Heiko Schocher wrote:  
> > > Hello Lukasz,
> > > 
> > > Am 14.01.2019 um 16:04 schrieb Lukasz Majewski:    
> > >> Hi Harald,
> > >>    
> > >>> Hello Lukasz,
> > >>>
> > >>> On Mon, 2019-01-14 at 15:39 +0100, Lukasz Majewski wrote:    
> > >>>> Hi Heiko,
> > >>>>       
> > >>>>> Hello Lukasz,
> > >>>>>
> > >>>>> Am 14.01.2019 um 14:02 schrieb Lukasz Majewski:    
> > >>>>>> Dear All,
> > >>>>>>
> > >>>>>> I'd like to ask you if is there any meta-* layer for BBB
> > >>>>>> (which works with out of the box poky/meta-yocto-bsp layer)
> > >>>>>> to create core-image*.wic file for Beagle Bone Black ?
> > >>>>>>
> > >>>>>> The wic file is supposed to run from the SD card.
> > >>>>>>
> > >>>>>> Thanks in advance for help.    
> > >>>>>
> > >>>>> Hmm.. isn;t the BBB a yocto reference board which should work
> > >>>>> out of the box?    
> > >>>>
> > >>>> Yes. BBB is a yocto/OE reference board and has meta-yocto-bsp
> > >>>> support.
> > >>>>
> > >>>> The above is one reason - the second reason for using it is no
> > >>>> running parts on it (silence :-) ).
> > >>>>       
> > >>>>> I have here a BBB board, but did for some times no real tests,
> > >>>>> but saw in my old tbot config files (beside using meta-xenomai
> > >>>>> from Marek) no other meta layer used than
> > >>>>> "meta-openembedded"    
> > >>>>
> > >>>> I read your manual for old tbot:
> > >>>> https://www.tbot.tools/bbb_guide.html
> > >>>>
> > >>>> As fair as I can see it uses python 2.7.
> > >>>>
> > >>>> Unfortunately, new one https://rahix.de/tbot/install.html [*]
> > >>>>
> > >>>> relies on python3. At lease on my setup, I do need pathlib and
> > >>>> ntpath modules.
> > >>>>        
> > >>>
> > >>> New tbot requires python 3.6+.  I use a lot of features
> > >>> introduced in 3.6 which means that I can't support older
> > >>> versions.    
> > >>
> > >> Ach.... I do see.
> > >>
> > >> I think that BIG FAT note in the installation page that python
> > >> 3.6+ is required would be helpful here (maybe I'm a bit
> > >> old-fashion, but I only distinct two python versions - 2.x and
> > >> 3.x :-) ).   
> > >>>    
> > >>>>
> > >>>> BTW: What is the "blessed" version of python3?
> > >>>>
> > >>>> The "thud" provides:
> > >>>> Python 3.5.6 (default, Jan 12 2019, 22:41:06)
> > >>>> [GCC 8.2.0] on linux
> > >>>>
> > >>>> When I do install paramiko via pip3 (as advised in [*]), I do
> > >>>> see following error:
> > >>>>
> > >>>> root at beaglebone-yocto:~/tbot# python3 setup.py install --user
> > >>>> random: python3: uninitialized urandom read (24 bytes read)
> > >>>>    File "setup.py", line 8
> > >>>>      about: typing.Dict[str, str] = {}
> > >>>>           ^
> > >>>> SyntaxError: invalid syntax
> > >>>>        
> > >>>
> > >>> Yes, this fails because type-annotations (what you are seeing in
> > >>> that error message) were introduced in python 3.6 while you try
> > >>> to run the code on 3.5.  That won't be possible, I'm
> > >>> afraid ...    
> > >>
> > >> Ok.
> > >>
> > >> Just one note - debian9 (stable) only supports 3.5.x python, so
> > >> we are a bit cutting edge with tbot now...
> > >>    
> > >>>    
> > >>>> Any help?
> > >>>>
> > >>>> (I'm also now testing the "stock" debian 9 image from
> > >>>> beaglebone.org webpage).    
> > >>>
> > >>> I am not quite sure what you are trying to do.  Do you intend to
> > >>> run tbot *on* the BBB?    
> > >>
> > >> I do want to use BBB as a manager of the tbot "LAB" - in a sense
> > >> as Heiko did in the past.    
> > > 
> > > I ran/run tbot (also the new one) on raspberry pi not on BBB!
> > > 
> > > I used the BBB for testing yocto and xenomai builds on the BBB !
> > >     
> > >> The setup would be as follows:
> > >>
> > >> - IP power cord
> > >> - IMX6Q DUT
> > >> - 24V power supply
> > >>
> > >> - BBB (it would control the power strip - via eth and it I would
> > >>    have the serial <-> usb converter connected to DUT). It would
> > >> be responsible for "local" management. I would have a separate
> > >> build machine (with Jenkins or buildbot) to provide
> > >> u-boot/kernel.    
> > > 
> > > Sounds standard tasks, I see no problems.
> > >     
> > >>    Why BBB? Small, cheap, silent.    
> > > 
> > > As I use the raspberry pi ;-)    
> > 
> > I feel Lukasz' intention was quite different, that is, is it
> > possible to build a "tbot-to-go" on OE basis, and then to be HW
> > independent (BBB instead of Raspi) ?  
> 
> I wanted to confine all the packages into meta-tbot(-bbb) to have it
> easily deployable with our BSP.
> 
> > 
> > tbot on RPI is using Raspbian and it is not so flexible if we want
> > to extend functionalities. That would require to build ourself
> > debian packages, and their dependencies increase at the end the
> > effort. For exampole, I put OpenOCD on it (but OE based).
> > 
> > I have checked with old tbot if it is possible to build on OE. Some
> > hints:
> > 
> > - Python in OE (master) is still 3.5.6  
> 
> This is the biggest show stopper - the 3.6.x is not yet available in
> OE.
> 
> > - there is not a paramiko recipe  
> 
> It is available in meta-iot-intel  (2.4.1 - not 2.4.2).
> 
> > - probably busybox is not enough
> > - there is not support for python-serial and friends  
> 
> Installing python packages is a different story. They are simply
> scattered around.
> 
> > - several python modules were missing, but things are pretty better
> > now.
> > 
> > A OE based system can be easier safe updated (guess how...), and
> > IMHO a BBB / RPI3 (or something else) is becoming a ready to use
> > product (as debugger / CI HW tool).  
> 
> I need a small board which is not making a lot of noise. As I do have
> an IP power Strip I just need ETH and connect usb hub to BBB's port.
> 
> The workaround I've found is to install from beagleboard.org the
> debian 9.5 and "upgrade" it to "buster" version. It takes
> considerable time, but provides python 3.7.x and tbot seems to work.
> 
> Also, as it is on the SD card I can dump it (compress) and easily
> share it with customer if needed.

I think that I would be enough to run remotely tbot test case from the
host on which buildbot/jenkins is running:

ssh -o PreferredAuthentications=password -o PubkeyAuthentication=no
root at bbb "tbot -T /root/tbot-tests -v my_awesome_testcase"
echo $?

And use return code.

Or maybe there is other, better way ?

> 
> > 
> > Anyway, there is some work to do - IMHO support for document
> > generation is also an important step and should be available in tbot
> > as it was in the old one.
> > 
> > Best regards,
> > Stefano
> >   
> > >     
> > >>> Is your plan to use the BBB as a kind of CI
> > >>> runner?
> > >>>    
> > >>
> > >> Yes, it will execute the tests (maybe with buildbot visualization
> > >> - if possible)
> > >>
> > >> Or is there any better way to visualise results from local run of
> > >> tests? (And on the beginning I would like to test if u-boot is
> > >> build and runs on the board as well as kernel boots till prompt).
> > >>    
> > >>>    
> > >>>>> Also I had a fix sometime ago for the BBB console, see:
> > >>>>>
> > >>>>> http://git.yoctoproject.org/cgit.cgi/poky/commit/?id=81e48b24dd9c97a3bdda3b4140f8e2bda29d24da
> > >>>>>
> > >>>>>
> > >>>>> bye,
> > >>>>> Heiko    
> > >>>>
> > >>>> Best regards,
> > >>>>
> > >>>> Lukasz Majewski
> > >>>>        
> > >>>
> > >>> Cheers,    
> > >>
> > >>
> > >>
> > >>
> > >> Best regards,
> > >>
> > >> Lukasz Majewski
> > >>
> > >> -- 
> > >>
> > >> DENX Software Engineering GmbH,      Managing Director: Wolfgang
> > >> Denk HRB 165235 Munich, Office: Kirchenstr.5, D-82194
> > >> Groebenzell, Germany Phone: (+49)-8142-66989-59 Fax:
> > >> (+49)-8142-66989-80 Email: lukma at denx.de   
> > >     
> > 
> >   
> 
> 
> 
> 
> Best regards,
> 
> Lukasz Majewski
> 
> --
> 
> DENX Software Engineering GmbH,      Managing Director: Wolfgang Denk
> HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
> Phone: (+49)-8142-66989-59 Fax: (+49)-8142-66989-80 Email:
> lukma at denx.de

Best regards,

Lukasz Majewski

--

DENX Software Engineering GmbH,      Managing Director: Wolfgang Denk
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: (+49)-8142-66989-59 Fax: (+49)-8142-66989-80 Email: lukma at denx.de
-------------- next part --------------
A non-text attachment was scrubbed...
Name: not available
Type: application/pgp-signature
Size: 488 bytes
Desc: OpenPGP digital signature
URL: <http://lists.denx.de/pipermail/tbot/attachments/20190115/ade63559/attachment.sig>