OVMS3-idf/docs/en/get-started/linux-setup.rst
2020-02-26 09:01:42 +01:00

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Standard Setup of Toolchain for Linux
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:link_to_translation:`zh_CN:[中文]`
Install Prerequisites
=====================
To compile with ESP-IDF you need to get the following packages:
- CentOS 7::
sudo yum install git wget ncurses-devel flex bison gperf python cmake ninja-build ccache
- Ubuntu and Debian::
sudo apt-get install git wget libncurses-dev flex bison gperf python python-pip python-setuptools cmake ninja-build ccache libffi-dev libssl-dev
- Arch::
sudo pacman -S --needed gcc git make ncurses flex bison gperf python-pip cmake ninja ccache
.. note::
CMake version 3.5 or newer is required for use with ESP-IDF. Older Linux distributions may require updating, enabling of a "backports" repository, or installing of a "cmake3" package rather than "cmake".
Additional Tips
===============
Permission issues /dev/ttyUSB0
------------------------------
With some Linux distributions you may get the ``Failed to open port /dev/ttyUSB0`` error message when flashing the ESP32. :ref:`This can be solved by adding the current user to the dialout group<linux-dialout-group>`.
Arch Linux Users
----------------
To run the precompiled gdb (xtensa-esp32-elf-gdb) in Arch Linux requires ncurses 5, but Arch uses ncurses 6.
Backwards compatibility libraries are available in AUR_ for native and lib32 configurations:
- https://aur.archlinux.org/packages/ncurses5-compat-libs/
- https://aur.archlinux.org/packages/lib32-ncurses5-compat-libs/
Before installing these packages you might need to add the author's public key to your keyring as described in the "Comments" section at the links above.
Alternatively, use crosstool-NG to compile a gdb that links against ncurses 6.
Setting up Python 3 as default for Ubuntu and Debian
----------------------------------------------------
Ubuntu and Debian are still providing Python 2.7 as the default interpreter. Python 3 can be installed as follows::
sudo apt-get install python3 python3-pip python3-setuptools
Making Python 3 the default interpreter is possible by running::
sudo update-alternatives --install /usr/bin/python python /usr/bin/python3 10
.. note::
This is system-wide change which may affect all of the applications.
Next Steps
==========
To carry on with development environment setup, proceed to :ref:`get-started-get-esp-idf`.
Related Documents
=================
.. toctree::
:maxdepth: 1
linux-setup-scratch
.. _AUR: https://wiki.archlinux.org/index.php/Arch_User_Repository