In the Dockerfile on jetson nano, it was necessary to install gnupg gnupg2 gnupg1 before running karaage0703's install-ros-melodic.sh.

In the Dockerfile on jetson nano, it was necessary to install gnupg gnupg2 gnupg1 before running karaage0703's install-ros-melodic.sh.

gnupg gnupg2 gnupg1 None version of Dockerfile → This caused an error during docker build

Dockerfile

FROM nvcr.io/nvidia/l4t-ml:r32.4.4-py3
LABEL maintainer="seigot<[email protected]>"

ENV DEBIAN_FRONTEND=noninteractive

# install basic package
RUN apt-get update && \
    apt-get install -yq wget curl git build-essential vim sudo lsb-release locales bash-completion tzdata \
    emacs \
    gosu \
    unzip \
    less

# install ROS
RUN git clone https://github.com/karaage0703/jetson-nano-tools /tmp/jetson-nano-tools && \
    gosu jetson /tmp/jetson-nano-tools/install-ros-melodic.sh

gnupg gnupg2 gnupg1 version of Dockerfile → successful installation

Dockerfile

FROM nvcr.io/nvidia/l4t-ml:r32.4.4-py3
LABEL maintainer="seigot<[email protected]>"

ENV DEBIAN_FRONTEND=noninteractive

# install basic package
RUN apt-get update && \
    apt-get install -yq wget curl git build-essential vim sudo lsb-release locales bash-completion tzdata \
    emacs \
    gnupg gnupg2 gnupg1 \
    gosu \
    unzip \
    less

# install ROS
RUN git clone https://github.com/karaage0703/jetson-nano-tools /tmp/jetson-nano-tools && \
    gosu jetson /tmp/jetson-nano-tools/install-ros-melodic.sh

reference

How to install ROS on Jetson Nano