BrewBlox Basic questions

adempewolff · April 28, 2019, 5:56pm

Have you done brewblox-ctl install first?

Ken_Vejbaek · April 28, 2019, 6:04pm

I did the installation with the following input

And for some reason, I still got the error

BR Ken

Bob_Steers · April 28, 2019, 6:14pm

If you run ls, it will show the directories. A brewblox one should be among them.

Ken_Vejbaek · April 28, 2019, 6:53pm

Hi Bob
It seems that only pi directory have been created since ls command just shows

BR Ken

adempewolff · April 28, 2019, 7:22pm

Out of curiosity, try ls -a in the pi home directory. I wonder if it stripped the “/” from “./BrewBlox” (which would make it a hidden directory).

If this is the case, you should be able to unhide it with mv .BrewBlox BrewBlox.

Ken_Vejbaek · April 28, 2019, 8:28pm

I have tried to run the “brewblox-ctl install” command once more with the same result as shown below.
At the end of the execution, errors occur.
BR Ken

Bob_Steers · April 28, 2019, 9:00pm

It seems like brewblox-ctl install exited with an error before it created the directory.
To fix this, you could try to reboot your raspberry, and then run the following commands:

curl -fsSL https://get.docker.com -o get-docker.sh
sudo sh get-docker.sh
brewblox-ctl install
brewblox-ctl setup

Elco · April 29, 2019, 12:07am

Linux is case sensitive…

Ken_Vejbaek · April 29, 2019, 6:05pm

Hi Bob,
I have tried to run the commands. During execution of the last commend I got the following question. What should be replied to this question?
BR Ken

Bob_Steers · April 29, 2019, 6:08pm

My bad on that one: you should navigate to your install dir before running brewblox-ctl setup.

Did your brewblox-ctl install complete without errors this time? Can you see your install directory if you run ls -a?

Ken_Vejbaek · April 29, 2019, 6:23pm

Running ls -a shows

and cd ./brewblox shows

Means that something goes wrong during installation?

BR Ken

Bob_Steers · April 29, 2019, 6:27pm

Did you reboot your raspberry?
Did your install command finish successfully?
What was the output of the install command?

Ken_Vejbaek · April 29, 2019, 6:31pm

The installation is executed after cold boot and output is shown below
The following shell commands will be used:

     sudo apt update
     sudo apt upgrade -y
     sudo apt install -y libssl-dev libffi-dev
     curl -sSL https://get.docker.com | sh
     sudo usermod -aG docker $USER
     sudo /usr/bin/python3 -m pip install -U docker-compose
     mkdir -p ./brewblox
     touch ./brewblox/.env
     /usr/bin/python3 -m dotenv.cli --quote never -f ./brewblox/.env set BRE                                                       WBLOX_RELEASE edge
     /usr/bin/python3 -m dotenv.cli --quote never -f ./brewblox/.env set BRE                                                       WBLOX_CFG_VERSION 0.0.0
     sudo reboot

Press ENTER to continue, Ctrl+C to cancel

Running command:
sudo apt update

Get:1 http://archive.raspberrypi.org/debian stretch InRelease [25.4 kB]
Get:2 http://raspbian.raspberrypi.org/raspbian stretch InRelease [15.0 kB]
Hit:3 https://download.docker.com/linux/raspbian stretch InRelease
Err:2 http://raspbian.raspberrypi.org/raspbian stretch InRelease
The following signatures couldn’t be verified because the public key is not av ailable: NO_PUBKEY 9165938D90FDDD2E
Err:1 http://archive.raspberrypi.org/debian stretch InRelease
The following signatures couldn’t be verified because the public key is not av ailable: NO_PUBKEY 82B129927FA3303E
Fetched 40.3 kB in 2s (16.9 kB/s)
Reading package lists… Done
Building dependency tree
Reading state information… Done
All packages are up to date.
W: An error occurred during the signature verification. The repository is not updated and the previous index files will be used. GPG erverified because the public key is not available: NO_PUBKEY 9165938D90FDDD2E
W: An error occurred during the signature verification. The repository is not updated and the previous index files will be used. GPG erified because the public key is not available: NO_PUBKEY 82B129927FA3303E
W: Failed to fetch http://raspbian.raspberrypi.org/raspbian/dists/stretch/InRelease The following signatures couldn’t be verified beca
W: Failed to fetch http://archive.raspberrypi.org/debian/dists/stretch/InRelease The following signatures couldn’t be verified because
W: Some index files failed to download. They have been ignored, or old ones used instead.

Running command:
sudo apt upgrade -y

Reading package lists… Done
Building dependency tree
Reading state information… Done
Calculating upgrade… Done
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.

Running command:
sudo apt install -y libssl-dev libffi-dev

Reading package lists… Done
Building dependency tree
Reading state information… Done
libffi-dev is already the newest version (3.2.1-6).
libssl-dev is already the newest version (1.1.0j-1~deb9u1).
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.

Running command:
curl -sSL https://get.docker.com | sh

Executing docker install script, commit: 2f4ae48

sudo -E sh -c apt-get update -qq >/dev/null
W: An error occurred during the signature verification. The repository is not updated and the previous index files will be used. GPG error: http://raspbian.raspberrypi.org/raspbian stretch InRelease: The following signatures could n’t be verified because the public key is not available: NO_PUBKEY 9165938D90FDDD2E
W: An error occurred during the signature verification. The repository is not updated and the previous index files will be used. GPG error: http://archive.raspberrypi.org/debian stretch InRelease: The following signatures couldn’t be verified because the public key is not available: NO_PUBKEY 82B129927FA3303E
W: Failed to fetch http://raspbian.raspberrypi.org/raspbian/dists/stretch/InRelease The following signatures could n’t be verified because the public key is not available: NO_PUBKEY 9165938D90FDDD2E
W: Failed to fetch http://archive.raspberrypi.org/debian/dists/stretch/InRelease The following signatures couldn’t be verified because the public key is not available: NO_PUBKEY 82B129927FA3303E
W: Some index files failed to download. They have been ignored, or old ones used instead.
sudo -E sh -c apt-get install -y -qq apt-transport-https ca-certificates curl >/dev/null
sudo -E sh -c curl -fsSL “https://download.docker.com/linux/raspbian/gpg” | apt-key add -qq - >/dev/null
Warning: apt-key output should not be parsed (stdout is not a terminal)
sudo -E sh -c echo “deb [arch=armhf] https://download.docker.com/linux/raspbian stretch stable” > /etc/apt/source s.list.d/docker.list
sudo -E sh -c apt-get update -qq >/dev/null
W: An error occurred during the signature verification. The repository is not updated and the previous index files will be used. GPG error: http://raspbian.raspberrypi.org/raspbian stretch InRelease: The following signatures could n’t be verified because the public key is not available: NO_PUBKEY 9165938D90FDDD2E
W: An error occurred during the signature verification. The repository is not updated and the previous index files will be used. GPG error: http://archive.raspberrypi.org/debian stretch InRelease: The following signatures couldn’t be verified because the public key is not available: NO_PUBKEY 82B129927FA3303E
W: Failed to fetch http://raspbian.raspberrypi.org/raspbian/dists/stretch/InRelease The following signatures could n’t be verified because the public key is not available: NO_PUBKEY 9165938D90FDDD2E
W: Failed to fetch http://archive.raspberrypi.org/debian/dists/stretch/InRelease The following signatures couldn’t be verified because the public key is not available: NO_PUBKEY 82B129927FA3303E
W: Some index files failed to download. They have been ignored, or old ones used instead.
[ -n ]
sudo -E sh -c apt-get install -y -qq --no-install-recommends docker-ce >/dev/null
E: Unable to locate package docker-ce

Error: Command ‘curl -sSL https://get.docker.com | sh’ returned non-zero exit status 100

Bob_Steers · April 29, 2019, 6:43pm

Thank you. If your install command output ends with “error: XXXX”, you shouldn’t continue running commands: it means something went wrong that must be solved first.

It appears this specific issue is in the Raspberry Pi itself, not in BrewBlox.
A google search indicates a possible solution:

wget http://archive.raspbian.org/raspbian.public.key -O - | sudo apt-key add -
curl -sSL https://get.docker.com | sh

If this still ends in an error, you may have a corrupted SD card. In that case it’s best to restart the install guide from the beginning.

Ken_Vejbaek · April 29, 2019, 6:54pm

Hi Bob
I got the following reply when executing the commands
wget http://archive.raspbian.org/raspbian.public.key -O - | sudo apt-key add -
–2019-04-29 19:55:49-- http://archive.raspbian.org/raspbian.public.key
Resolving archive.raspbian.org (archive.raspbian.org)… 93.93.128.191, 2a00:1098:0:80:1000:75:0:2
Connecting to archive.raspbian.org (archive.raspbian.org)|93.93.128.191|:80… connected.
HTTP request sent, awaiting response… 200 OK
Length: 1776 (1.7K) [application/octet-stream]
Saving to: ‘STDOUT’

                            100%[============================================================>]   1.73K  --.-KB/s    in 0s

2019-04-29 19:55:49 (3.66 MB/s) - written to stdout [1776/1776]

OK
curl -sSL https://get.docker.com | sh

Executing docker install script, commit: 2f4ae48

sudo -E sh -c apt-get update -qq >/dev/null
W: An error occurred during the signature verification. The repository is not updated and the previous index files will be used. GPG error: http://archive.raspberrypi.org/debian stretch InRelease: The following signatures couldn’t be verified because the public key is not available: NO_PUBKEY 82B129927FA3303E
W: Failed to fetch http://archive.raspberrypi.org/debian/dists/stretch/InRelease The following signatures couldn’t be verified because the public key is not available: NO_PUBKEY 82B129927FA3303E
W: Some index files failed to download. They have been ignored, or old ones used instead.
sudo -E sh -c apt-get install -y -qq apt-transport-https ca-certificates curl >/dev/null
sudo -E sh -c curl -fsSL “https://download.docker.com/linux/raspbian/gpg” | apt-key add -qq - >/dev/null
Warning: apt-key output should not be parsed (stdout is not a terminal)
sudo -E sh -c echo “deb [arch=armhf] https://download.docker.com/linux/raspbian stretch stable” > /etc/apt/sources.list.d/docker.list
sudo -E sh -c apt-get update -qq >/dev/null
W: An error occurred during the signature verification. The repository is not updated and the previous index files will be used. GPG error: http://archive.raspberrypi.org/debian stretch InRelease: The following signatures couldn’t be verified because the public key is not available: NO_PUBKEY 82B129927FA3303E
W: Failed to fetch http://archive.raspberrypi.org/debian/dists/stretch/InRelease The following signatures couldn’t be verified because the public key is not available: NO_PUBKEY 82B129927FA3303E
W: Some index files failed to download. They have been ignored, or old ones used instead.
[ -n ]
sudo -E sh -c apt-get install -y -qq --no-install-recommends docker-ce >/dev/null
E: Unable to locate package docker-ce

Bob_Steers · April 29, 2019, 7:04pm

You could try:

gpg --keyserver keys.gnupg.net --recv-key 82B129927FA3303E
gpg -a --export 82B129927FA3303E | apt-key add -
curl -sSL https://get.docker.com | sh

If the output still ends with

Error: Command ‘curl -sSL https://get.docker.com | sh’ returned non-zero exit status 100

then the best choice is to restart the install guide. Make sure you safely eject the SD card after you flash it.

Ken_Vejbaek · April 29, 2019, 7:23pm

Hi Bob
I got the following response to the commands
pi@raspberrypi:~ $ gpg --keyserver keys.gnupg.net --recv-key 82B129927FA3303E
gpg: failed to start the dirmngr ‘/usr/bin/dirmngr’: No such file or directory
gpg: connecting dirmngr at ‘/run/user/1000/gnupg/S.dirmngr’ failed: No such file or directory
gpg: keyserver receive failed: No dirmngr
pi@raspberrypi:~ $ gpg -a --export 82B129927FA3303E | apt-key add -
gpg: WARNING: nothing exported
E: This command can only be used by root.
pi@raspberrypi:~ $ curl -sSL https://get.docker.com | sh

Executing docker install script, commit: 2f4ae48

sudo -E sh -c apt-get update -qq >/dev/null
W: An error occurred during the signature verification. The repository is not updated and the previous indeified because the public key is not available: NO_PUBKEY 82B129927FA3303E
W: Failed to fetch http://archive.raspberrypi.org/debian/dists/stretch/InRelease The following signatures
W: Some index files failed to download. They have been ignored, or old ones used instead.
sudo -E sh -c apt-get install -y -qq apt-transport-https ca-certificates curl >/dev/null
sudo -E sh -c curl -fsSL “https://download.docker.com/linux/raspbian/gpg” | apt-key add -qq - >/dev/null
Warning: apt-key output should not be parsed (stdout is not a terminal)
sudo -E sh -c echo “deb [arch=armhf] https://download.docker.com/linux/raspbian stretch stable” > /etc/ap
sudo -E sh -c apt-get update -qq >/dev/null
W: An error occurred during the signature verification. The repository is not updated and the previous indeified because the public key is not available: NO_PUBKEY 82B129927FA3303E
W: Failed to fetch http://archive.raspberrypi.org/debian/dists/stretch/InRelease The following signatures
W: Some index files failed to download. They have been ignored, or old ones used instead.
[ -n ]
sudo -E sh -c apt-get install -y -qq --no-install-recommends docker-ce >/dev/null
E: Unable to locate package docker-ce

Bob_Steers · April 29, 2019, 7:25pm

Then your best option is to restart the brewblox install guide from step 1.

Ken_Vejbaek · April 29, 2019, 7:34pm

I will do a complete reinstall from step 1 as you recommend, thank you for your assistance.

I have an error coming up on the screen connected to the PI saying that (under voltage detected (0x00050005), Even I use the original power supply rated 5.00V@1.00A.

Do you think this could be an issue

BR Ken

Bob_Steers · April 29, 2019, 7:40pm

A Raspberry Pi requires a +5.1V / 2.5A power supply.
It’s likely not the cause for this issue.