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I am running into this issue as well with the ros:noetic-ros-core-focal as well as ros:noetic builds straight from dockerhub

docker run -it --rm ros:noetic-ros-core-focal bash
    Fatal Python error: pyinit_main: can't initialize time
    Python runtime state: core initialized
    PermissionError: [Errno 1] Operation not permitted

I am running into this issue as well with the ros:noetic-ros-core-focal as well as ros:noetic builds straight from dockerhub

docker run -it --rm ros:noetic-ros-core-focal bash
    Fatal Python error: pyinit_main: can't initialize time
    Python runtime state: core initialized
    PermissionError: [Errno 1] Operation not permitted

I am running into this issue as well with the ros:noetic-ros-core-focal as well as ros:noetic builds straight from dockerhub

docker run -it --rm ros:noetic-ros-core-focal bash
    Fatal Python error: pyinit_main: can't initialize time
    Python runtime state: core initialized
    PermissionError: [Errno 1] Operation not permitted

I think this issue is definitely tied to the arm32 architecture as I successfully performed the above test on arm64 and amd64 architectures.architectures. I also tried installing straight from ubuntu:focal following ros.org installation instructions, but there seems to be an issue with that too, as highlighted here : https://askubuntu.com/questions/1263284/apt-update-throws-signature-error-in-ubuntu-20-04-container-on-arm

I am running into this issue as well with the ros:noetic-ros-core-focal as well as ros:noetic builds straight from dockerhub

docker run -it --rm ros:noetic-ros-core-focal bash
    Fatal Python error: pyinit_main: can't initialize time
    Python runtime state: core initialized
    PermissionError: [Errno 1] Operation not permitted

I think this issue is definitely tied to the arm32 architecture as I successfully performed the above test on arm64 and amd64 architectures. I also tried installing straight from ubuntu:focal following ros.org installation instructions, but there seems to be an issue with that too, as highlighted here : https://askubuntu.com/questions/1263284/apt-update-throws-signature-error-in-ubuntu-20-04-container-on-arm

I am running into this issue as well with the ros:noetic-ros-core-focal as well as ros:noetic builds straight from dockerhub

docker run -it --rm ros:noetic-ros-core-focal bash
    Fatal Python error: pyinit_main: can't initialize time
    Python runtime state: core initialized
    PermissionError: [Errno 1] Operation not permitted

I think this issue is definitely tied to the arm32 architecture as I successfully performed the above test on arm64 and amd64 architectures. I also tried installing straight from ubuntu:focal following ros.org installation instructions, but there seems to be an issue with that too, as highlighted here : https://askubuntu.com/questions/1263284/apt-update-throws-signature-error-in-ubuntu-20-04-container-on-arm

After all this, what ended up working for me was running with the --security-opt seccomp:unconfined option. This appears to be tied to some issue with libseccomp package that is breaking debian builds for arm32.

docker run --rm --name noetic-dev -it --security-opt seccomp:unconfined ros:noetic bash