设置编码

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sudo apt update && sudo apt install locales
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sudo locale-gen en_US en_US.UTF-8
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sudo update-locale LC_ALL=en_US.UTF-8 LANG=en_US.UTF-8
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export LANG=en_US.UTF-8

添加源

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sudo apt update && sudo apt install curl gnupg lsb-release 
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sudo curl -sSL https://raw.githubusercontent.com/ros/rosdistro/master/ros.key -o /usr/share/keyrings/ros-archive-keyring.gpg 
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echo "deb [arch=$(dpkg --print-architecture) signed-by=/usr/share/keyrings/ros-archive-keyring.gpg] http://packages.ros.org/ros2/ubuntu $(source /etc/os-release && echo $UBUNTU_CODENAME) main" | sudo tee /etc/apt/sources.list.d/ros2.list > /dev/null

如遇报错“Failed to connect to raw.githubusercontent.com”，可参考https://www.guyuehome.com/37844

安装ROS2

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sudo apt update
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sudo apt upgrade

引用: