running the build script

dealerpriest

Hello! I'm trying to run the build script. It runs fine the first time. But consecutive tries seems to fail.
With the following command:
./build_project.sh ../examples/01-Basics/print/
I get the following message at the end of the terminal output:
ssh: Could not resolve hostname bbb: Name or service not known scp: /root/Bela/projects//print/print: Not a directory Error while copying files

thetechnobear

are you running this on your computer , or BBB, they are designed to be run on the computer.
docs are here: https://github.com/BelaPlatform/Bela/wiki/Bela-command-line-arguments

if your expecting the host name to be set to bbb, it won't by default you need to install avahi-daemon on the bbb

apt-get install avahi-daemon avahi-discover libnss-mdns

then you can set the hostname in /etc/hostname

It would be nice if the scripts could be altered to run locally as well, (without going via the network layer), this would be simple enough, substituting scp for cp, and the sh for ssh. (I think these were the main changes I saw when I looked at it last)

dealerpriest

I'm running the script though git-bash on a win7 laptop.
I don't know if I expect the hostname to be set to bbb. I expect whatever is default I guess?
Shouldn't the ssh credentials default to root@192.168.7.2? I haven't changed any settings for ssh access on the BBB.

andrew

It might be something funny to do with how the environment variables are getting set in git-bash (which I don't know anything about). Try running export BBB_ADDRESS=root@192.168.7.2 before the script and see if that makes it work again. (A lot of the relevant machinery is in .bela_common within the scripts directory if you want to browse around.)

dealerpriest

andrew
Tried to run the address command
export BBB_ADDRESS=root@andrew#382
Didn't change the result.

giuliomoro
You mean I should update the Bela code running on the BBB, right?
It's not clear to me how I'd go about doing a git pull. SSH in and run git pull from there? Then I guess I need it hooked up with ethernet?

Wouldn't a good way of doing an update be to run the update_board script (which I have)?
Or do the "update bela" from the settings in the IDE? (this doesn't work for me though, as the IDE tells me the file isn't a valid zip archive.

giuliomoro

That was a bug. Fixed and pushed to master 84750b3 . You should re-download the archive (or git pull ). Please test and let me know if it works alright.

Interestingly, it seems that you do not have rsync installed (does not come as default with git-bash). I think I provided fallbacks for it (using scp) every time it was used, but let me know if you encounter any other error.

thetechnobear

dealerpriest You mean I should update the Bela code running on the BBB, right?
It's not clear to me how I'd go about doing a git pull. SSH in and run git pull from there? Then I guess I need it hooked up with ethernet?

no the scripts are run on your computer, so you need the git image on your computer.
(basically the scripts, via update script, can push a new image to bela when needed, as well as managing project compiles etc...).

your best bet, if you are using the command line on the computer etc, is git clone the bela repo on your computer....
the you can use git pull to bring in updates, and you can also push new images to the bela with update_board.

this 'split' usage of scripts on the computer and bela running, probably is something the docs could be a little clearer on... its obvious once your done it a couple of times, but initially its a little unclear, what runs on the bela and what on the host computer.

giuliomoro

dealerpriest as thetechnobear says you have to update the code on your machine.
As you already have git installed, do this in git-bash:

$ git clone git@github.com:BelaPlatform/Bela.git 
$ cd Bela 
$ ./scripts/update_board

This will create a copy of the Bela repo the Bela folder (relative to the place where you ran the above command.
It will get you the most up to date version, with the fix to your issue already in place.

Then you can stay up to date with the latest updates by doing

cd /path/to/Bela
git pull
./scripts/update_board

every time you want to update.

dealerpriest

Of course! That's so stupid of me 😜
But I stumble upon this now:
Updating files...samples: No such file or directory An error occurred. Is the board connected?

dealerpriest

I created a folder on the host computer named samples and put some wave files with corresponding names inside.
Seems to update properly now

dealerpriest

But the build script still fails unfortunately:
$ ./build_project.sh ../../hackoutwest -b --watch Checking the board is up and running at root@192.168.7.2...done Stop running process... Project `hackoutwest' already exists on the board, do you want to overwrite it?(y/n): y Copying new source files to BeagleBone... which: no rsync in (/c/Users/average swede/bin:/mingw64/bin.. blablabla) make: *** No rule to make target `sourceclean'. Stop. scp: /root/Bela/projects//hackoutwest/hackoutwest: Not a directory Error while copying files

giuliomoro

that was yet another bug. Should be fixed now.
to be honest, the scp stuff is quite untested (it only occurs on Windows when rsync was not installed as part of git-bash. You will also note that the wiki recommends that you install rsync as part of your bash), Anyhow, now I added a flag that makes it easier for me to test it even when I do have rsync, pretending that I don't have it.
If you went the git way, in order to update you shall do:

git pull

and you are good to go, in this case, as there is no update to the code that runs on the board, so ./update_board is not needed.

dealerpriest

Nice! Seems to work now. Thanks for helping out quickly!