I have changed the docker-root folder in /lib/systemd/system/docker.service and then try to build the docker image from Dockerfile. Simple Dockerfile example:
FROM nvidia/cuda:11.3.1-devel-ubuntu20.04
RUN apt-get update && apt-get install curl -y
docker build process is failed for execution of apt-get update with output message:
Step 2/2 : RUN apt-get update && apt-get install curl -y
---> Running in 199cefe322a3
Get:1 http://archive.ubuntu.com/ubuntu focal InRelease [265 kB]
Get:2 https://developer.download.nvidia.com/compute/cuda/repos/ubuntu2004/x86_64 InRelease [1581 B]
Err:2 https://developer.download.nvidia.com/compute/cuda/repos/ubuntu2004/x86_64 InRelease
At least one invalid signature was encountered.
Get:3 http://archive.ubuntu.com/ubuntu focal-updates InRelease [128 kB]
Err:1 http://archive.ubuntu.com/ubuntu focal InRelease
At least one invalid signature was encountered.
Get:4 http://archive.ubuntu.com/ubuntu focal-backports InRelease [128 kB]
Err:3 http://archive.ubuntu.com/ubuntu focal-updates InRelease
At least one invalid signature was encountered.
Err:4 http://archive.ubuntu.com/ubuntu focal-backports InRelease
At least one invalid signature was encountered.
Get:5 http://security.ubuntu.com/ubuntu focal-security InRelease [128 kB]
Err:5 http://security.ubuntu.com/ubuntu focal-security InRelease
At least one invalid signature was encountered.
Reading package lists...
W: GPG error: https://developer.download.nvidia.com/compute/cuda/repos/ubuntu2004/x86_64 InRelease: At least one invalid signature was encountered.
E: The repository 'https://developer.download.nvidia.com/compute/cuda/repos/ubuntu2004/x86_64 InRelease' is not signed.
W: GPG error: http://archive.ubuntu.com/ubuntu focal InRelease: At least one invalid signature was encountered.
E: The repository 'http://archive.ubuntu.com/ubuntu focal InRelease' is not signed.
W: GPG error: http://archive.ubuntu.com/ubuntu focal-updates InRelease: At least one invalid signature was encountered.
E: The repository 'http://archive.ubuntu.com/ubuntu focal-updates InRelease' is not signed.
W: GPG error: http://archive.ubuntu.com/ubuntu focal-backports InRelease: At least one invalid signature was encountered.
E: The repository 'http://archive.ubuntu.com/ubuntu focal-backports InRelease' is not signed.
W: GPG error: http://security.ubuntu.com/ubuntu focal-security InRelease: At least one invalid signature was encountered.
E: The repository 'http://security.ubuntu.com/ubuntu focal-security InRelease' is not signed.
The command '/bin/sh -c apt-get update && apt-get install curl -y' returned a non-zero code: 100
but when I use docker build with default directory for docker-root folder this command is successfully completed and docker image is built. What is the reason for which the above repositories are not signed when docker-root folder is not default? I need to use non-default directory as docker storage and it is not clear for me why this change causes the error. What is way to fix this problem?
