Ubuntu U盘启动工具Rufus制作(详细步骤) 重装了一下，第一次插U盘时死机了？第二次插U盘时正常，好的顺利安装好了ubuntu。安装时直接选的英文，而后需要重新设置language support，有点麻烦，还不如开始的时候就选择中文…
gym-gazebo要求： ROS Melodic: Desktop-Full Install recommended, includes Gazebo 9.0.0 Gazebo 9.0.0
主页 20180830_ROS开发笔记（8）——Turtlebot3 Gazebo仿真环境下深度强化学习DQN（Deep Q-Learning）开发环境构建 开发环境为Ubuntu 16.04、ROS版本为kinetic、py2 20180909_ROS开发笔记（9）——ROS 深度强化学习应用之keras版本dqn代码分析 20180914_ROS开发笔记（10）——ROS 深度强化学习dqn应用之tensorflow版本(double dqn/dueling dqn/prioritized replay dqn)
其人应该是ROS界的大牛。 主页
20190430_ROS、OpenAI和Gazebo机器人与人工智能仿真与实践教研杂记（一）安装配置 系统：Ubuntu 18.04.2 LTS + ROS Melodic（1.0）1.14.3 ~ 1943 + ROS Crystal（2.0）0.6.1 ~ 541 etc. 仿真：Gazebo 9.8.0 + V-Rep 3.6.1 + Webots 2019a.1 etc. 镜像：ROS2Go ver2.0 + 实验楼ROS + Exbot ROS iso indigo&kinetic etc. 编程：Matlab 2018a + Python 2.7 + Python 3.6 + C++ etc. 智能：Tensorflow + Caffe + OpenAI etc.
gym-gazebo支持ROS Melodic（1.0） gym-gazebo2支持ROS Crystal（2.0）
20190513_ROS、OpenAI和Gazebo机器人与人工智能仿真与实践教研杂记（三）深度学习 关于ROS、OpenAI和Gazebo已经测试过环境包括： Ubuntu 16.04 + ROS 1 Kinetic + OpenAI + Gazebo 7 Ubuntu 18.04 + ROS 1 Melodic + OpenAI +Gazebo 9
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20190813_gym-gazebo安装 ubuntu18.04; Melodic; Gzebo9.0
20190809_openai_ros教程（ ros gazebo 深度强化学习） ubuntu16.04，kinetic
主页 20190528_强化学习实现四旋翼无人机的路径选择(Gym+Gym-Gazebo+Gazebo+Ros) 20190410_ROS+Gazebo+Gym+Gym_gazebo安装配置
gym-gazebo的官方安装教程 Installation: Ubuntu 18.04 Ubuntu 16.04 (deprecated)官方弃用 Ubuntu 14.04 (deprecated)官方弃用 Docker (deprecated)官方弃用
Ubuntu 18.04 Basic requirements: ROS Melodic: Desktop-Full Install recommended, includes Gazebo 9.0.0 (http://wiki.ros.org/melodic/Installation/Ubuntu). Gazebo 9.0.0
Ubuntu 16.04 Basic requirements: ROS Kinetic (/rosversion: 1.12.7) Gazebo 8.1.1 Python 3.5.2 OpenCV3, installed from sources for Python 3 (git clone https://github.com/Itseez/opencv.git) OpenAI gym
主页 20181010_安装Airsim并在Airsim仿真环境下进行DDPG DQN强化学习算法无人机训练
tensorflow可以参考‘天涯0508’安装‘tensorflow_gpu-1.8.0-cp27-none-linux_x86_64.whl’
20190419_NVIDIA 驱动版本 cuDNN CUDA Tensorflow四者之间的版本的对应问题：
VersionPython versionCompilerBuild toolscuDNNCUDAtensorflow_gpu-1.8.02.7, 3.3-3.6GCC 4.8Bazel 0.10.079把以前下载的各种包直接导进去，然后安装。 安装anaconda3-5.1.0，20180911_Ubuntu16 安装Anaconda3 安装ROS melodic，20190726_Ubuntu18.04安装ROS melodic
melodic昨天没装完今天继续，开机时失败了、像是死机…平时开机也不快，完全不像笔记本上面的ubuntu16.04，快的很。 碰到了昨天同样的问题：
$ sudo rosdep init ERROR: cannot download default sources list from: https://raw.githubusercontent.com/ros/rosdistro/master/rosdep/sources.list.d/20-default.list Website may be down.卸载 Ubuntu 16.04 Kinetic版本ROS 卸载之后再重装，遭遇了一堆源的问题，最后靠阿里的源救回一命。 另外添加了ROS官方的软件镜像源和中科大的源：
sudo sh -c 'echo "deb http://packages.ros.org/ros/ubuntu $(lsb_release -sc) main" > /etc/apt/sources.list.d/ros-latest.list' sudo sh -c '. /etc/lsb-release && echo "deb http://mirrors.ustc.edu.cn/ros/ubuntu/ $DISTRIB_CODENAME main" > /etc/apt/sources.list.d/ros-latest.list'再次安装后，出现了更多问题：
(py27) fyo@fyo:~$ sudo rosdep init Wrote /etc/ros/rosdep/sources.list.d/20-default.list Recommended: please run rosdep update (py27) fyo@fyo:~$ sudo rosdep update reading in sources list data from /etc/ros/rosdep/sources.list.d Warning: running 'rosdep update' as root is not recommended. You should run 'sudo rosdep fix-permissions' and invoke 'rosdep update' again without sudo. Hit https://raw.githubusercontent.com/ros/rosdistro/master/rosdep/osx-homebrew.yaml Hit https://raw.githubusercontent.com/ros/rosdistro/master/rosdep/base.yaml Hit https://raw.githubusercontent.com/ros/rosdistro/master/rosdep/python.yaml ERROR: unable to process source [https://raw.githubusercontent.com/ros/rosdistro/master/rosdep/ruby.yaml]: <urlopen error timed out> (https://raw.githubusercontent.com/ros/rosdistro/master/rosdep/ruby.yaml) ERROR: unable to process source [https://raw.githubusercontent.com/ros/rosdistro/master/releases/fuerte.yaml]: Failed to download target platform data for gbpdistro: <urlopen error timed out> Query rosdistro index https://raw.githubusercontent.com/ros/rosdistro/master/index-v4.yaml ERROR: error loading sources list: <urlopen error <urlopen error timed out> (https://raw.githubusercontent.com/ros/rosdistro/master/index-v4.yaml)>melodic对我确实不太友好…在转战kinetic之前，我还想再试一遍，不过这次直接拿笔记本上的源来安装melodic，看看效果会不会好一点：
# deb cdrom:[Ubuntu 16.04 LTS _Xenial Xerus_ - Release amd64 (20160420.1)]/ xenial main restricted # See http://help.ubuntu.com/community/UpgradeNotes for how to upgrade to # newer versions of the distribution. # deb-src http://cn.archive.ubuntu.com/ubuntu/ xenial main restricted ## Major bug fix updates produced after the final release of the ## distribution. # deb-src http://cn.archive.ubuntu.com/ubuntu/ xenial-updates main restricted ## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu ## team, and may not be under a free licence. Please satisfy yourself as to ## your rights to use the software. Also, please note that software in ## universe WILL NOT receive any review or updates from the Ubuntu security ## team. # deb-src http://cn.archive.ubuntu.com/ubuntu/ xenial universe # deb-src http://cn.archive.ubuntu.com/ubuntu/ xenial-updates universe ## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu ## team, and may not be under a free licence. Please satisfy yourself as to ## your rights to use the software. Also, please note that software in ## multiverse WILL NOT receive any review or updates from the Ubuntu ## security team. # deb-src http://cn.archive.ubuntu.com/ubuntu/ xenial multiverse # deb-src http://cn.archive.ubuntu.com/ubuntu/ xenial-updates multiverse ## N.B. software from this repository may not have been tested as ## extensively as that contained in the main release, although it includes ## newer versions of some applications which may provide useful features. ## Also, please note that software in backports WILL NOT receive any review ## or updates from the Ubuntu security team. # deb-src http://cn.archive.ubuntu.com/ubuntu/ xenial-backports main restricted universe multiverse ## Uncomment the following two lines to add software from Canonical's ## 'partner' repository. ## This software is not part of Ubuntu, but is offered by Canonical and the ## respective vendors as a service to Ubuntu users. # deb http://archive.canonical.com/ubuntu xenial partner # deb-src http://archive.canonical.com/ubuntu xenial partner # deb-src http://security.ubuntu.com/ubuntu xenial-security main restricted # deb-src http://security.ubuntu.com/ubuntu xenial-security universe # deb-src http://security.ubuntu.com/ubuntu xenial-security multiverse deb http://mirrors.tuna.tsinghua.edu.cn/ubuntu/ xenial main universe restricted multiverse deb http://security.ubuntu.com/ubuntu/ xenial-security universe restricted multiverse main deb http://mirrors.tuna.tsinghua.edu.cn/ubuntu/ xenial-updates universe restricted multiverse main deb http://archive.ubuntu.com/ubuntu/ trusty main universe restricted multiverse deb http://archive.ubuntu.com/ubuntu xenial main universe restricted multiverse deb-src http://archive.ubuntu.com/ubuntu xenial main universe restricted multiverse #Added by software-properties deb http://security.ubuntu.com/ubuntu/ xenial-security main restricted multiverse universe deb http://archive.ubuntu.com/ubuntu xenial-updates main restricted multiverse universe deb http://packages.ros.org/ros/ubuntu xenial main # deb-src http://packages.ros.org/ros/ubuntu xenial main deb http://packages.ros.org/ros-shadow-fixed/ubuntu xenial main # deb-src http://packages.ros.org/ros-shadow-fixed/ubuntu xenial main # deb-src http://packages.ros.org/ros/ubuntu xenial main # deb-src http://packages.ros.org/ros-shadow-fixed/ubuntu xenial main且不说能不能安装好，简直快得一笔…有点开心…
# 第一个终端 roscore # 第二个终端 rosrun turtlesim turtlesim_node # 第三个终端 rosrun turtlesim turtle_teleop_key终于又看见熟悉的龟龟了！ 所以这两天碰见的麻烦事，主要都是源的问题！
编译其他还好，可是编译uuv包“uuv_simulator”的时候“惊喜”不断，单独发个贴好了，难度有点大、内容应该会很长。
sudo gedit /etc/apt/sources.list
明天打算重装ubuntu16，搭配kinetic！
