Table of contents
3. Errors and solutions encountered when starting Ubuntu
1. Preparation
Control Panel - Programs - Programs and Features - Turn Windows features on or off
Open the three items shown in the figure and restart the computer
2. Install Ubuntu 22.04.1 LTS
Open Microsoft Store, search and download Ubuntu 22.04.1 LTS
( Be sure to install Ubuntu before installing Windows Subsystem for Linux , otherwise an error will be reported if you move the location of Ubuntu )
ps : By default, it is installed on the C drive, and the installation location can be moved. It is recommended to move to another drive
3. Errors and solutions encountered when starting Ubuntu
Error:
WslRegisterDistribution failed with error: 0x800701bc
solution:
Download and install the latest WSL2 Linux kernel update package for x64 computers
download link
https://wslstorestorage.blob.core.windows.net/wslblob/wsl_update_x64.msi
After installation
Error:
adduser: Please enter a username matching the regular expression configured
via the NAME_REGEX[_SYSTEM] configuration variable. Use the `--force-badname'
option to relax this check or reconfigure NAME_REGEX.
solution:
Change capital letters to lowercase
ps : the entered password is not displayed
Fourth, change the source
The default software source of Ubuntu is abroad, which may cause the download software to freeze, so the source needs to be changed. Here I choose to change to Ali source.
1. Double-click the Ubuntu22.04 LTS icon, enter in the command line
# 备份原来的软件源
sudo cp /etc/apt/sources.list /etc/apt/sources.list.bak
# 编辑软件源
sudo nano /etc/apt/sources.list2. Replace the original content with Aliyuan
deb http://mirrors.aliyun.com/ubuntu/ jammy main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ jammy main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ jammy-security main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ jammy-security main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ jammy-updates main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ jammy-updates main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ jammy-proposed main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ jammy-proposed main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ jammy-backports main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ jammy-backports main restricted universe multiverseCtrl + O to save , enter, Ctrl + X to exit
3. After the change
4. Update and upgrade software
Execute the following commands in sequence on the Ubuntu command line:
# 更新软件源
sudo apt-get update -y
# 升级所有软件
sudo apt-get upgrade -y
5. Install ROS
set encoding
sudo apt update
sudo apt install locales
sudo locale-gen en_US en_US.UTF-8
sudo update-locale LC_ALL=en_US.UTF-8 LANG=en_US.UTF-8
export LANG=en_US.UTF-8
add source
1. Make sure the Ubuntu Universe repository is enabled by checking the output of this command.
apt-cache policy | grep universe① normal situation
② If you do not see the output line like above, execute the following commands in sequence:
sudo apt install software-properties-common
sudo add-apt-repository universe2. Continue to execute the following commands:
sudo apt update && sudo apt install curl gnupg lsb-release
sudo curl -sSL https://raw.githubusercontent.com/ros/rosdistro/master/ros.key -o /usr/share/keyrings/ros-archive-keyring.gpg
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/null① normal situation
②报错：curl: (7) Failed to connect to raw.githubusercontent.com port 443 after 0 ms: Connection refused
solve
sudo nano /etc/hostsadd a line
199.232.28.133 raw.githubusercontent.comCtrl + O to save , enter, Ctrl + X to exit
Install ROS
sudo apt update
sudo apt upgradeInstall the desktop version
sudo apt install ros-humble-desktop
The installation time is long, wait slowly
set environment variables
source /opt/ros/humble/setup.bash
echo " source /opt/ros/humble/setup.bash" >> ~/.bashrctest
① Start a data publisher node with the following command:
ros2 run demo_nodes_cpp talker
②Start another terminal and start a data subscriber node through the following command
ros2 run demo_nodes_py listener