Getting "docker: unknown server OS: ."

[dragoneye65]

Hi,

My system is 5.4.0-48-generic x86_64 with OS "Ubuntu 20.04.1 LTS (Focal Fossa)"
Followed the given install procedure:
$ git clone https://github.com/bluecherrydvr/bluecherryclient-docker.git
$ sudo docker build -t bluecherry-client .
Sending build context to Docker daemon 142.3kB
Step 1/8 : FROM ubuntu:18.04
18.04: Pulling from library/ubuntu
171857c49d0f: Pull complete
419640447d26: Pull complete
61e52f862619: Pull complete
Digest: sha256:646942475da61b4ce9cc5b3fadb42642ea90e5d0de46111458e100ff2c7031e6
Status: Downloaded newer image for ubuntu:18.04
---> 56def654ec22
Step 2/8 : RUN apt-get update && apt-get install -y wget gnupg libssl1.0-dev
---> Running in 7df34ec6b4c2
[snip][snip][snip]

$ sudo chmod +x run.sh ; ./run.sh
non-network local connections being added to access control list
docker: unknown server OS: .
See 'docker run --help'.

Now what? :-)
Regards

[quixand]

the sudo is not applied to the run.sh command due to the ; semicolon.
try
$ sudo chmod +x run.sh
$ sudo ./run.sh

[quixand]

I also disabled bunch of device mappings that were throwing errors
I'm running linux mint 20.2
--device=/dev/dri/card0:/dev/dri/card0
--device=/dev/dri/renderD128:/dev/dri/renderD128
--device=/dev/snd/timer:/dev/snd/timer
--device=/dev/snd/pcmC0D0p:/dev/snd/pcmC0D0p
--device=/dev/snd/controlC0:/dev/snd/controlC0
--device=/dev/snd/seq:/dev/snd/seq \

I also added a mapping for the config file so I can mess around with the containers without having to rebuild the container
--volume="$home/system/bluecherry_dvr/bluecherryclient-docker/config/bluecherry:/root/.config/" \

also running the container this way pushes all the STDOUT to the session, so to hide that I just start the container using a bash alias
alias bcclient="xhost +local:root;sudo docker start 0cf4bef5d17e"