(ubuntu-nightly)=

# Installing the OpenQuake Engine nightly builds on Ubuntu Linux

The OpenQuake Engine **nightly builds** are available in the form of *deb* binary packages for the following Ubuntu releases:
- **Ubuntu 20.04** LTS (Focal)
- **Ubuntu 18.04** LTS (Bionic)

Packages *may* work on Debian, but this setup is not supported by GEM. See the **[FAQ](unsupported-operating-systems)**.

The software and its libraries will be installed under `/opt/openquake`. Data will be stored under `/var/lib/openquake`.

## Install packages from the OpenQuake nightly repository

The following commands add the nightly builds package repository:
```bash
sudo add-apt-repository -ry ppa:openquake/ppa
sudo add-apt-repository -y ppa:openquake-automatic-team/latest-master
sudo apt update
```

Then to install the OpenQuake Engine and its libraries first remove stable packages and then install nightly build packages
```bash
sudo apt remove --purge python-oq-.* python3-oq-.*
sudo apt install python3-oq-engine
```

Now you can follow the [standard installing procedures](ubuntu.md)

***

## Getting help
If you need help or have questions/comments/feedback for us, you can subscribe to the OpenQuake users mailing list: https://groups.google.com/g/openquake-users