Successfully building this with yotta and Ubuntu 20.04 in 2023

[fabianhugo]

Hi,
just started from a fresh install of Ubuntu 20.04.6 and wanted to document the necessary steps of building this in march '23:

Install requirements of yotta, leaving out easy_install pip (link)

sudo apt-get update && sudo apt-get install python-setuptools cmake build-essential ninja-build python-dev libffi-dev libssl-dev

Create VirtualEnv to protect Python Installation (Installing yotta with pip3/python3 can mess up your python installation!)

sudo apt install virtualenv
cd [workingdirectory]
virtualenv --python=$(which python2) yottaenv
source yottaenv/bin/activate

Install pip2

wget https://bootstrap.pypa.io/pip/2.7/get-pip.py
python2 get-pip.py

Install Yotta inside your Virtual Environment

pip install yotta

Install requirements for microbit-samples

sudo apt-get install gcc-arm-none-eabi binutils-arm-none-eabi srecord

Clone microbit-samples and build

git clone https://github.com/lancaster-university/microbit-samples.git
cd microbit-samples
yotta build

Hope this helps someone.

[fabianhugo]

Update: Building this with yotta in Pop OS 22.04 using python3 in 2025

this is following c3-p0 answer here

Python Version: 3.10.12
arm-none-eabi version: 10.3
Cmake version: 3.25.1
ninja version: 1.10.1

Steps

1. python3 -m venv ~/yottavenv
2. source ~/yottavenv/bin/activate
3. create constraints.txt with this content:

cmsis-pack-manager==0.2.10  # 2020-03-31
pyocd==0.25.0   # 2020-03-11
pyyaml==5.3.1   # 2020-03-19
yotta==0.20.5   # 2020-03-06
markupsafe==2.0.1 # solves ImportError: cannot import name 'soft_unicode' from 'markupsafe' (/home/lop/yottavenv/lib/python3.10/site-packages/markupsafe/__init__.py)

4. pip install --upgrade pip setuptools
5. pip install -c constraints.txt yotta

Note: if you run into warning: github rate limit for anonymous requests exceeded: you must log in you have to export your an github auth token with export YOTTA_GITHUB_AUTHTOKEN={INSERTYOURTOKENHERE}

Install other dependencies:

sudo apt install cmake ninja-build

For arm-none-eabi follow: https://askubuntu.com/questions/1243252/how-to-install-arm-none-eabi-gdb-on-ubuntu-20-04-lts-focal-fossa

1. Download https://developer.arm.com/downloads/-/gnu-rm/10-3-2021-10
2. Install dependencies:

sudo apt install libncurses-dev
sudo ln -s /usr/lib/x86_64-linux-gnu/libncurses.so.6 /usr/lib/x86_64-linux-gnu/libncurses.so.5
sudo ln -s /usr/lib/x86_64-linux-gnu/libtinfo.so.6 /usr/lib/x86_64-linux-gnu/libtinfo.so.5

2. Exctract: sudo tar xjf gcc-arm-none-eabi-YOUR-VERSION.bz2 -C /usr/share/

3. Link manually

sudo ln -s /usr/share/gcc-arm-none-eabi-YOUR-VERSION/bin/arm-none-eabi-gcc /usr/bin/arm-none-eabi-gcc 
sudo ln -s /usr/share/gcc-arm-none-eabi-YOUR-VERSION/bin/arm-none-eabi-g++ /usr/bin/arm-none-eabi-g++
sudo ln -s /usr/share/gcc-arm-none-eabi-YOUR-VERSION/bin/arm-none-eabi-gdb /usr/bin/arm-none-eabi-gdb
sudo ln -s /usr/share/gcc-arm-none-eabi-YOUR-VERSION/bin/arm-none-eabi-size /usr/bin/arm-none-eabi-size
sudo ln -s /usr/share/gcc-arm-none-eabi-YOUR-VERSION/bin/arm-none-eabi-objcopy /usr/bin/arm-none-eabi-objcopy

4. Check if it works

arm-none-eabi-gcc --version
arm-none-eabi-g++ --version
arm-none-eabi-gdb --version
arm-none-eabi-size --version

[microbit-carlos]

Thanks for sharing @fabianhugo!
For reference, this is also a requirements.txt with exact Yotta Python dependencies that worked in Ubuntu 20.04: https://github.com/carlosperate/docker-microbit-toolchain/blob/master/requirements.txt