Brewlox install failure

#1

Good day All,

I am having a problem when installing BrewBlox on a raspberry Pi. I am following the guide of the website, however when I issue the command brewblox-ctl install to start the process off, all appear to go well until it reaches the line "Building wheels for collected packages: Cryptography.
At this point the install script stalls with the error "

I have included the output from the terminal in a hope that you may be able to point out my error

build/temp.linux-armv7l-3.5/_openssl.c:498:30: fatal error: openssl/opensslv.h: No such file or directory
#include <openssl/opensslv.h>
^
compilation terminated.
error: command ‘arm-linux-gnueabihf-gcc’ failed with exit status 1


Failed building wheel for cryptography
Running setup.py clean for cryptography
Failed to build cryptography
Installing collected packages: texttable, pynacl, pyasn1, bcrypt, cryptography, paramiko, docker, docker-compose
Found existing installation: pyasn1 0.1.9
Not uninstalling pyasn1 at /usr/lib/python3/dist-packages, outside environment /usr
Found existing installation: cryptography 1.7.1
Not uninstalling cryptography at /usr/lib/python3/dist-packages, outside environment /usr
Running setup.py install for cryptography … error
Complete output from command /usr/bin/python3 -u -c “import setuptools, tokenize;file=’/tmp/pip-build-vt88aznd/cryptography/setup.py’;f=getattr(tokenize, ‘open’, open)(file);code=f.read().replace(’\r\n’, ‘\n’);f.close();exec(compile(code, file, ‘exec’))” install --record /tmp/pip-kffu7a7l-record/install-record.txt --single-version-externally-managed --compile:
running install
running build
running build_py
creating build
creating build/lib.linux-armv7l-3.5
creating build/lib.linux-armv7l-3.5/cryptography
copying src/cryptography/about.py -> build/lib.linux-armv7l-3.5/cryptography
copying src/cryptography/init.py -> build/lib.linux-armv7l-3.5/cryptography
copying src/cryptography/fernet.py -> build/lib.linux-armv7l-3.5/cryptography
copying src/cryptography/exceptions.py -> build/lib.linux-armv7l-3.5/cryptography
copying src/cryptography/utils.py -> build/lib.linux-armv7l-3.5/cryptography
creating build/lib.linux-armv7l-3.5/cryptography/hazmat
copying src/cryptography/hazmat/_oid.py -> build/lib.linux-armv7l-3.5/cryptography/hazmat
copying src/cryptography/hazmat/init.py -> build/lib.linux-armv7l-3.5/cryptography/hazmat
creating build/lib.linux-armv7l-3.5/cryptography/x509
copying src/cryptography/x509/oid.py -> build/lib.linux-armv7l-3.5/cryptography/x509
copying src/cryptography/x509/general_name.py -> build/lib.linux-armv7l-3.5/cryptography/x509
copying src/cryptography/x509/base.py -> build/lib.linux-armv7l-3.5/cryptography/x509
copying src/cryptography/x509/extensions.py -> build/lib.linux-armv7l-3.5/cryptography/x509
copying src/cryptography/x509/certificate_transparency.py -> build/lib.linux-armv7l-3.5/cryptography/x509
copying src/cryptography/x509/init.py -> build/lib.linux-armv7l-3.5/cryptography/x509
copying src/cryptography/x509/name.py -> build/lib.linux-armv7l-3.5/cryptography/x509
copying src/cryptography/x509/ocsp.py -> build/lib.linux-armv7l-3.5/cryptography/x509
creating build/lib.linux-armv7l-3.5/cryptography/hazmat/primitives
copying src/cryptography/hazmat/primitives/padding.py -> build/lib.linux-armv7l-3.5/cryptography/hazmat/primitives
copying src/cryptography/hazmat/primitives/constant_time.py -> build/lib.linux-armv7l-3.5/cryptography/hazmat/primitives
copying src/cryptography/hazmat/primitives/hashes.py -> build/lib.linux-armv7l-3.5/cryptography/hazmat/primitives
copying src/cryptography/hazmat/primitives/mac.py -> build/lib.linux-armv7l-3.5/cryptography/hazmat/primitives
copying src/cryptography/hazmat/primitives/init.py -> build/lib.linux-armv7l-3.5/cryptography/hazmat/primitives
copying src/cryptography/hazmat/primitives/cmac.py -> build/lib.linux-armv7l-3.5/cryptography/hazmat/primitives
copying src/cryptography/hazmat/primitives/hmac.py -> build/lib.linux-armv7l-3.5/cryptography/hazmat/primitives
copying src/cryptography/hazmat/primitives/keywrap.py -> build/lib.linux-armv7l-3.5/cryptography/hazmat/primitives
creating build/lib.linux-armv7l-3.5/cryptography/hazmat/backends
copying src/cryptography/hazmat/backends/init.py -> build/lib.linux-armv7l-3.5/cryptography/hazmat/backends
copying src/cryptography/hazmat/backends/interfaces.py -> build/lib.linux-armv7l-3.5/cryptography/hazmat/backends
creating build/lib.linux-armv7l-3.5/cryptography/hazmat/bindings
copying src/cryptography/hazmat/bindings/init.py -> build/lib.linux-armv7l-3.5/cryptography/hazmat/bindings
creating build/lib.linux-armv7l-3.5/cryptography/hazmat/primitives/twofactor
copying src/cryptography/hazmat/primitives/twofactor/init.py -> build/lib.linux-armv7l-3.5/cryptography/hazmat/primitives/twofactor
copying src/cryptography/hazmat/primitives/twofactor/hotp.py -> build/lib.linux-armv7l-3.5/cryptography/hazmat/primitives/twofactor
copying src/cryptography/hazmat/primitives/twofactor/utils.py -> build/lib.linux-armv7l-3.5/cryptography/hazmat/primitives/twofactor
copying src/cryptography/hazmat/primitives/twofactor/totp.py -> build/lib.linux-armv7l-3.5/cryptography/hazmat/primitives/twofactor
creating build/lib.linux-armv7l-3.5/cryptography/hazmat/primitives/asymmetric
copying src/cryptography/hazmat/primitives/asymmetric/padding.py -> build/lib.linux-armv7l-3.5/cryptography/hazmat/primitives/asymmetric
copying src/cryptography/hazmat/primitives/asymmetric/x25519.py -> build/lib.linux-armv7l-3.5/cryptography/hazmat/primitives/asymmetric
copying src/cryptography/hazmat/primitives/asymmetric/ed448.py -> build/lib.linux-armv7l-3.5/cryptography/hazmat/primitives/asymmetric
copying src/cryptography/hazmat/primitives/asymmetric/ec.py -> build/lib.linux-armv7l-3.5/cryptography/hazmat/primitives/asymmetric
copying src/cryptography/hazmat/primitives/asymmetric/init.py -> build/lib.linux-armv7l-3.5/cryptography/hazmat/primitives/asymmetric
copying src/cryptography/hazmat/primitives/asymmetric/dh.py -> build/lib.linux-armv7l-3.5/cryptography/hazmat/primitives/asymmetric
copying src/cryptography/hazmat/primitives/asymmetric/x448.py -> build/lib.linux-armv7l-3.5/cryptography/hazmat/primitives/asymmetric
copying src/cryptography/hazmat/primitives/asymmetric/ed25519.py -> build/lib.linux-armv7l-3.5/cryptography/hazmat/primitives/asymmetric
copying src/cryptography/hazmat/primitives/asymmetric/utils.py -> build/lib.linux-armv7l-3.5/cryptography/hazmat/primitives/asymmetric
copying src/cryptography/hazmat/primitives/asymmetric/dsa.py -> build/lib.linux-armv7l-3.5/cryptography/hazmat/primitives/asymmetric
copying src/cryptography/hazmat/primitives/asymmetric/rsa.py -> build/lib.linux-armv7l-3.5/cryptography/hazmat/primitives/asymmetric
creating build/lib.linux-armv7l-3.5/cryptography/hazmat/primitives/serialization
copying src/cryptography/hazmat/primitives/serialization/pkcs12.py -> build/lib.linux-armv7l-3.5/cryptography/hazmat/primitives/serialization
copying src/cryptography/hazmat/primitives/serialization/base.py -> build/lib.linux-armv7l-3.5/cryptography/hazmat/primitives/serialization
copying src/cryptography/hazmat/primitives/serialization/init.py -> build/lib.linux-armv7l-3.5/cryptography/hazmat/primitives/serialization
copying src/cryptography/hazmat/primitives/serialization/ssh.py -> build/lib.linux-armv7l-3.5/cryptography/hazmat/primitives/serialization
creating build/lib.linux-armv7l-3.5/cryptography/hazmat/primitives/ciphers
copying src/cryptography/hazmat/primitives/ciphers/base.py -> build/lib.linux-armv7l-3.5/cryptography/hazmat/primitives/ciphers
copying src/cryptography/hazmat/primitives/ciphers/init.py -> build/lib.linux-armv7l-3.5/cryptography/hazmat/primitives/ciphers
copying src/cryptography/hazmat/primitives/ciphers/aead.py -> build/lib.linux-armv7l-3.5/cryptography/hazmat/primitives/ciphers
copying src/cryptography/hazmat/primitives/ciphers/algorithms.py -> build/lib.linux-armv7l-3.5/cryptography/hazmat/primitives/ciphers
copying src/cryptography/hazmat/primitives/ciphers/modes.py -> build/lib.linux-armv7l-3.5/cryptography/hazmat/primitives/ciphers
creating build/lib.linux-armv7l-3.5/cryptography/hazmat/primitives/kdf
copying src/cryptography/hazmat/primitives/kdf/scrypt.py -> build/lib.linux-armv7l-3.5/cryptography/hazmat/primitives/kdf
copying src/cryptography/hazmat/primitives/kdf/x963kdf.py -> build/lib.linux-armv7l-3.5/cryptography/hazmat/primitives/kdf
copying src/cryptography/hazmat/primitives/kdf/hkdf.py -> build/lib.linux-armv7l-3.5/cryptography/hazmat/primitives/kdf
copying src/cryptography/hazmat/primitives/kdf/init.py -> build/lib.linux-armv7l-3.5/cryptography/hazmat/primitives/kdf
copying src/cryptography/hazmat/primitives/kdf/pbkdf2.py -> build/lib.linux-armv7l-3.5/cryptography/hazmat/primitives/kdf
copying src/cryptography/hazmat/primitives/kdf/concatkdf.py -> build/lib.linux-armv7l-3.5/cryptography/hazmat/primitives/kdf
copying src/cryptography/hazmat/primitives/kdf/kbkdf.py -> build/lib.linux-armv7l-3.5/cryptography/hazmat/primitives/kdf
creating build/lib.linux-armv7l-3.5/cryptography/hazmat/backends/openssl
copying src/cryptography/hazmat/backends/openssl/decode_asn1.py -> build/lib.linux-armv7l-3.5/cryptography/hazmat/backends/openssl
copying src/cryptography/hazmat/backends/openssl/x25519.py -> build/lib.linux-armv7l-3.5/cryptography/hazmat/backends/openssl
copying src/cryptography/hazmat/backends/openssl/hashes.py -> build/lib.linux-armv7l-3.5/cryptography/hazmat/backends/openssl
copying src/cryptography/hazmat/backends/openssl/ed448.py -> build/lib.linux-armv7l-3.5/cryptography/hazmat/backends/openssl
copying src/cryptography/hazmat/backends/openssl/ciphers.py -> build/lib.linux-armv7l-3.5/cryptography/hazmat/backends/openssl
copying src/cryptography/hazmat/backends/openssl/ec.py -> build/lib.linux-armv7l-3.5/cryptography/hazmat/backends/openssl
copying src/cryptography/hazmat/backends/openssl/init.py -> build/lib.linux-armv7l-3.5/cryptography/hazmat/backends/openssl
copying src/cryptography/hazmat/backends/openssl/aead.py -> build/lib.linux-armv7l-3.5/cryptography/hazmat/backends/openssl
copying src/cryptography/hazmat/backends/openssl/x509.py -> build/lib.linux-armv7l-3.5/cryptography/hazmat/backends/openssl
copying src/cryptography/hazmat/backends/openssl/encode_asn1.py -> build/lib.linux-armv7l-3.5/cryptography/hazmat/backends/openssl
copying src/cryptography/hazmat/backends/openssl/cmac.py -> build/lib.linux-armv7l-3.5/cryptography/hazmat/backends/openssl
copying src/cryptography/hazmat/backends/openssl/dh.py -> build/lib.linux-armv7l-3.5/cryptography/hazmat/backends/openssl
copying src/cryptography/hazmat/backends/openssl/hmac.py -> build/lib.linux-armv7l-3.5/cryptography/hazmat/backends/openssl
copying src/cryptography/hazmat/backends/openssl/x448.py -> build/lib.linux-armv7l-3.5/cryptography/hazmat/backends/openssl
copying src/cryptography/hazmat/backends/openssl/ocsp.py -> build/lib.linux-armv7l-3.5/cryptography/hazmat/backends/openssl
copying src/cryptography/hazmat/backends/openssl/ed25519.py -> build/lib.linux-armv7l-3.5/cryptography/hazmat/backends/openssl
copying src/cryptography/hazmat/backends/openssl/backend.py -> build/lib.linux-armv7l-3.5/cryptography/hazmat/backends/openssl
copying src/cryptography/hazmat/backends/openssl/utils.py -> build/lib.linux-armv7l-3.5/cryptography/hazmat/backends/openssl
copying src/cryptography/hazmat/backends/openssl/dsa.py -> build/lib.linux-armv7l-3.5/cryptography/hazmat/backends/openssl
copying src/cryptography/hazmat/backends/openssl/rsa.py -> build/lib.linux-armv7l-3.5/cryptography/hazmat/backends/openssl
creating build/lib.linux-armv7l-3.5/cryptography/hazmat/bindings/openssl
copying src/cryptography/hazmat/bindings/openssl/_conditional.py -> build/lib.linux-armv7l-3.5/cryptography/hazmat/bindings/openssl
copying src/cryptography/hazmat/bindings/openssl/init.py -> build/lib.linux-armv7l-3.5/cryptography/hazmat/bindings/openssl
copying src/cryptography/hazmat/bindings/openssl/binding.py -> build/lib.linux-armv7l-3.5/cryptography/hazmat/bindings/openssl
running egg_info
writing dependency_links to src/cryptography.egg-info/dependency_links.txt
writing top-level names to src/cryptography.egg-info/top_level.txt
writing requirements to src/cryptography.egg-info/requires.txt
writing src/cryptography.egg-info/PKG-INFO
reading manifest file ‘src/cryptography.egg-info/SOURCES.txt’
reading manifest template ‘MANIFEST.in’
no previously-included directories found matching ‘docs/_build’
warning: no previously-included files matching ‘*’ found under directory ‘vectors’
writing manifest file ‘src/cryptography.egg-info/SOURCES.txt’
running build_ext
generating cffi module ‘build/temp.linux-armv7l-3.5/_padding.c’
creating build/temp.linux-armv7l-3.5
generating cffi module ‘build/temp.linux-armv7l-3.5/_constant_time.c’
generating cffi module ‘build/temp.linux-armv7l-3.5/_openssl.c’
building ‘_openssl’ extension
creating build/temp.linux-armv7l-3.5/build
creating build/temp.linux-armv7l-3.5/build/temp.linux-armv7l-3.5
arm-linux-gnueabihf-gcc -pthread -DNDEBUG -g -fwrapv -O2 -Wall -Wstrict-prototypes -g -fdebug-prefix-map=/build/python3.5-6waWnr/python3.5-3.5.3=. -fstack-protector-strong -Wformat -Werror=format-security -Wdate-time -D_FORTIFY_SOURCE=2 -fPIC -I/usr/include/python3.5m -c build/temp.linux-armv7l-3.5/_openssl.c -o build/temp.linux-armv7l-3.5/build/temp.linux-armv7l-3.5/_openssl.o -Wconversion -Wno-error=sign-conversion
build/temp.linux-armv7l-3.5/_openssl.c:498:30: fatal error: openssl/opensslv.h: No such file or directory
#include <openssl/opensslv.h>
^
compilation terminated.
error: command ‘arm-linux-gnueabihf-gcc’ failed with exit status 1

----------------------------------------

Can’t rollback cryptography, nothing uninstalled.
Command “/usr/bin/python3 -u -c “import setuptools, tokenize;file=’/tmp/pip-build-vt88aznd/cryptography/setup.py’;f=getattr(tokenize, ‘open’, open)(file);code=f.read().replace(’\r\n’, ‘\n’);f.close();exec(compile(code, file, ‘exec’))” install --record /tmp/pip-kffu7a7l-record/install-record.txt --single-version-externally-managed --compile” failed with error code 1 in /tmp/pip-build-vt88aznd/cryptography/

Error: Command ‘sudo /usr/bin/python3 -m pip install -U docker-compose’ returned non-zero exit status 1
pi@raspberrypi:~ $

Sorry if this is a bit messy but I could not see another way of doing it.

Regards

#2

Welcome to the forum!

This is a known issue, and something we’re busy fixing.

For now you can solve it by running the following command on your pi, and then restarting the installer

sudo apt install libffi-dev libssl-dev
#3

Thanks for the quick response. I have had another go at the installation and got much further. I received an error towards then end of the installation. I will try again this evening after reflashing the SD card to see if that will clear it. If not I will post the error text so that you may be able to look at it.

Regards

#4

I just pushed an updated version of brewblox-ctl, that fixes this bug. You can get it by using sudo pip3 install -U brewblox-ctl

Did you reboot your raspberry? It’s required after installing Docker, but it aborted the installation after it installed Docker, but before reboot.

#5

Once again thanks. I will give this a try from my home, where the internet runs at a more reasonable speed and with a clean install of the OS

#6

Managed to find time last evening to start over. Fresh install of the the OS and followed the step on the website. With decent internet the whole process completed in around 40 mins. I now have a working Brewblox install, now to build the hardware.

Many thanks for the assistance. one quick question - I have a spare photon dev board, can this be flashed with the firmwares and added to brewblox?

Regards

#7

The firmware expects to have some other chips on the board, like the OneWire bus master. It will not work without it.

#8

I wasn’t sure whether to start a new topic or not.

I have a fresh install of Rasbian Lite on my raspberry pi (original model B).

I get through to the following without error but then this happens

pi@raspberrypi:~/brewblox $ brewblox-ctl install
Welcome to the BrewBlox menu!
brewblox-ctl scripts are not yet installed in this directory. Do you want to do so now? [Y/n]
y
The following shell commands will be used:

     docker rm ctl-lib || echo "you can ignore this error"
     docker pull brewblox/brewblox-ctl-lib:rpi-edge || true
     docker create --name ctl-lib brewblox/brewblox-ctl-lib:rpi-edge
     rm -rf ./brewblox_ctl_lib || echo "you can ignore this error"
     docker cp ctl-lib:/brewblox_ctl_lib ./
     docker rm ctl-lib

Press ENTER to continue, Ctrl+C to cancel

Running command:
docker rm ctl-lib || echo “you can ignore this error”

Cannot connect to the Docker daemon at unix:///var/run/docker.sock. Is the docker daemon running?
you can ignore this error

Running command:
docker pull brewblox/brewblox-ctl-lib:rpi-edge || true

Cannot connect to the Docker daemon at unix:///var/run/docker.sock. Is the docker daemon running?

Running command:
docker create --name ctl-lib brewblox/brewblox-ctl-lib:rpi-edge

Cannot connect to the Docker daemon at unix:///var/run/docker.sock. Is the docker daemon running?

Error: Command ‘docker create --name ctl-lib brewblox/brewblox-ctl-lib:rpi-edge’ returned non-zero exit status 1

Any suggestions please?

#9

You seem to have run brewblox-ctl install twice: first in your home directory (~), and now in the ~/brewblox directory.

Did you complete the installation the first time? Did you reboot after completing the first installation?

This error usually occurs if you chose to run docker commands without sudo, and then did not log off or reboot.

After fixing that: after running brewblox-ctl install outside the brewblox directory, you should run brewblox-ctl setup inside the directory.

#10

Thanks Bob. The output in my original message was after a couple of hours of trying and i think i had done a couple of installations and other things. I have now just gone through a complete reinstallation from a fresh raspbian lite image. This time I didn’t opt to do run docker without sudo. It seemed to go fine and then reboot.

I then encountered the same error unfortunately:

pi@raspberrypi:~ $ cd ./brewblox
pi@raspberrypi:~/brewblox $ brewblox-ctl setup
Welcome to the BrewBlox menu!
brewblox-ctl scripts are not yet installed in this directory. Do you want to do so now? [Y/n]
y
The following shell commands will be used:

     sudo docker rm ctl-lib || echo "you can ignore this error"
     sudo docker pull brewblox/brewblox-ctl-lib:rpi-edge || true
     sudo docker create --name ctl-lib brewblox/brewblox-ctl-lib:rpi-edge
     rm -rf ./brewblox_ctl_lib || echo "you can ignore this error"
     sudo docker cp ctl-lib:/brewblox_ctl_lib ./
     sudo docker rm ctl-lib
     sudo chown -R $USER ./brewblox_ctl_lib/

Press ENTER to continue, Ctrl+C to cancel

Running command:
sudo docker rm ctl-lib || echo “you can ignore this error”

Cannot connect to the Docker daemon at unix:///var/run/docker.sock. Is the docker daemon running?
you can ignore this error

Running command:
sudo docker pull brewblox/brewblox-ctl-lib:rpi-edge || true

Cannot connect to the Docker daemon at unix:///var/run/docker.sock. Is the docker daemon running?

Running command:
sudo docker create --name ctl-lib brewblox/brewblox-ctl-lib:rpi-edge

Cannot connect to the Docker daemon at unix:///var/run/docker.sock. Is the docker daemon running?

Error: Command ‘sudo docker create --name ctl-lib brewblox/brewblox-ctl-lib:rpi-edge’ returned non-zero exit status 1

I could post the entire text if that helps but it is rather long.

#11

Can you try rebooting?

@Bob_Steers from the log above:

pi@raspberrypi:~/brewblox $ brewblox-ctl install
Welcome to the BrewBlox menu!
brewblox-ctl scripts are not yet installed in this directory. Do you want to do so now? [Y/n]
y
The following shell commands will be used:

     docker rm ctl-lib || echo "you can ignore this error"
     docker pull brewblox/brewblox-ctl-lib:rpi-edge || true
     docker create --name ctl-lib brewblox/brewblox-ctl-lib:rpi-edge
     rm -rf ./brewblox_ctl_lib || echo "you can ignore this error"
     docker cp ctl-lib:/brewblox_ctl_lib ./
     docker rm ctl-lib
Press ENTER to continue, Ctrl+C to cancel

install is trying to use docker, but it can’t unless it has already been installed by something other than the install command. At least the pi should reboot after installing docker.

#12

Hi Elco,
I just rebooted and tried again and got the same error.

#13

It’s indeed now running with sudo, so we know it’s an issue with Docker itself, not user permissions. If you run:

sudo service docker stop
sudo service docker start

Does it then work?

#14

pi@raspberrypi:~ $ cd ./brewblox
pi@raspberrypi:~/brewblox $ sudo service docker stop
pi@raspberrypi:~/brewblox $ sudo service docker start
Job for docker.service failed because a fatal signal was delivered causing the control process to dump core.
See “systemctl status docker.service” and “journalctl -xe” for details.
pi@raspberrypi:~/brewblox $

#15

After some reading back, I realised I missed an important detail in what you said.

Raspberry models 1 and 0 are not compatible with BrewBlox: they still use the ARMv6 architecture (instead of ARMv7), and don’t have enough RAM to run the database.

#16

Ok, thanks. Will go back to brewpi for now. I have some other single board computers e.g. Odroid U3 (ARMv7 Cortex-A9) and XU4 (ARMv7 Cortex-A15) and 2 GB RAM. Should these in theory run BrewBlox?

#17

I haven’t personally tried them, but that sounds fine.

All our software apart from the brewblox-ctl tool runs in Docker/docker-compose, so if that works, everything else should follow.

#18

In this vein, am I right that a few people in the last week have been attempting and having issues with trying to install on older raspi’s? Would it be worth adding a few lines right at the begining of brewblox-ctl install that checks the architecture of the system and throws a warning if its an older arm or non x86?

#19

Added that yesterday, along with a warning in the install guide =)

1 Like
#20

After failing to install brewblox on a rpi v1 I tried to install brewblox on ubuntu 14.04 on odroid u3 and hit the same issue. I then did a fresh raspbian lite installation on my rpi v1 again and tried to install brewpi but hit similar issues with docker not running.

So the wiki installation guide for brewpi isn’t working for me on a version 1 Raspberry Pi Model B.

So I investigated and found this thread:

and manually installed docker-ce version 18.06.1

sudo apt-get install docker-ce=18.06.1~ce~3-0~raspbian

instead of the latest version ?18.09?

and was then able to successfully run Docker and install brewpi on my original model raspberry Pi.

So I then wondered if i could do the same with a brewblox installation on my v1 raspberry pi and during installation I opted not to apt upgrade my docker-ce version. I have got to the brewblox menu and have successfully flashed the photon but have not been able to run brewblox. It may be pointless in pursuing this given the memory limitations you mentioned earlier but it was really to highlight the possibility of issues with docker 18.09.