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Install for Ubuntu 20.04 (#17869)
* Add article for 20.04 when ready * Change message wording * Fix error in wget command
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‎docs/core/install/includes/package-manager-switcher.md

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> [!div class="op_single_selector"]
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>
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> - [Ubuntu 20.04 - x64](../linux-package-manager-ubuntu-2004.md)
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> - [Ubuntu 19.10 - x64](../linux-package-manager-ubuntu-1910.md)
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> - [Ubuntu 19.04 - x64](../linux-package-manager-ubuntu-1904.md)
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> - [Ubuntu 18.04 - x64](../linux-package-manager-ubuntu-1804.md)

‎docs/core/install/linux-package-manager-ubuntu-1910.md

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```bash
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sudo apt-get install -y gpg
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wget O- https://packages.microsoft.com/keys/microsoft.asc | gpg --dearmor -o microsoft.asc.gpg
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wget -O- https://packages.microsoft.com/keys/microsoft.asc | gpg --dearmor -o microsoft.asc.gpg
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sudo mv microsoft.asc.gpg /etc/apt/trusted.gpg.d/
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wget https://packages.microsoft.com/config/ubuntu/19.10/prod.list
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sudo mv prod.list /etc/apt/sources.list.d/microsoft-prod.list

‎docs/core/install/linux-package-manager-ubuntu-2004.md

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---
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title: Install .NET Core on Ubuntu 20.04 package manager - .NET Core
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description: Use a package manager to install .NET Core SDK and runtime on Ubuntu 20.04.
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author: thraka
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ms.author: adegeo
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ms.date: 04/15/2020
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---
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# Ubuntu 20.04 Package Manager - Install .NET Core
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[!INCLUDE [package-manager-switcher](./includes/package-manager-switcher.md)]
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This article describes how to use a package manager to install .NET Core on Ubuntu 20.04.
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[!INCLUDE [package-manager-intro-sdk-vs-runtime](includes/package-manager-intro-sdk-vs-runtime.md)]
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## Add Microsoft repository key and feed
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Before installing .NET, you'll need to:
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- Add the Microsoft package signing key to the list of trusted keys.
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- Add the repository to the package manager.
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- Install required dependencies.
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This only needs to be done once per machine.
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Open a terminal and run the following commands.
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```bash
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wget https://packages.microsoft.com/config/ubuntu/20.04/packages-microsoft-prod.deb -O packages-microsoft-prod.deb
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sudo dpkg -i packages-microsoft-prod.deb
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```
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## Install the .NET Core SDK
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Update the products available for installation, then install the .NET Core SDK. In your terminal, run the following commands.
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```bash
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sudo apt-get update
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sudo apt-get install apt-transport-https
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sudo apt-get update
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sudo apt-get install dotnet-sdk-3.1
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```
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> [!IMPORTANT]
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> If you receive an error message similar to **Unable to locate package dotnet-sdk-3.1**, see the [Troubleshoot the package manager](#troubleshoot-the-package-manager) section.
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## Install the ASP.NET Core runtime
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Update the products available for installation, then install the ASP.NET Core runtime. In your terminal, run the following commands.
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```bash
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sudo apt-get update
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sudo apt-get install apt-transport-https
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sudo apt-get update
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sudo apt-get install aspnetcore-runtime-3.1
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```
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> [!IMPORTANT]
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> If you receive an error message similar to **Unable to locate package aspnetcore-runtime-3.1**, see the [Troubleshoot the package manager](#troubleshoot-the-package-manager) section.
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## Install the .NET Core runtime
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Update the products available for installation, then install the .NET Core runtime. In your terminal, run the following commands.
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```bash
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sudo apt-get update
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sudo apt-get install apt-transport-https
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sudo apt-get update
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sudo apt-get install dotnet-runtime-3.1
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```
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> [!IMPORTANT]
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> If you receive an error message similar to **Unable to locate package dotnet-runtime-3.1**, see the [Troubleshoot the package manager](#troubleshoot-the-package-manager) section.
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## How to install other versions
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[!INCLUDE [package-manager-switcher](./includes/package-manager-heading-hack-pkgname.md)]
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## Troubleshoot the package manager
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This section provides information on common errors you may get while using the package manager to install .NET Core.
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### Unable to locate
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If you receive an error message similar to **Unable to locate package {the .NET Core package}**, run the following commands.
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```bash
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sudo dpkg --purge packages-microsoft-prod && sudo dpkg -i packages-microsoft-prod.deb
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sudo apt-get update
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sudo apt-get install {the .NET Core package}
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```
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If that doesn't work, you can run a manual install with the following commands.
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```bash
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sudo apt-get install -y gpg
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wget -O- https://packages.microsoft.com/keys/microsoft.asc | gpg --dearmor -o microsoft.asc.gpg
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sudo mv microsoft.asc.gpg /etc/apt/trusted.gpg.d/
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wget https://packages.microsoft.com/config/ubuntu/20.04/prod.list
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sudo mv prod.list /etc/apt/sources.list.d/microsoft-prod.list
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sudo chown root:root /etc/apt/trusted.gpg.d/microsoft.asc.gpg
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sudo chown root:root /etc/apt/sources.list.d/microsoft-prod.list
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sudo apt-get install -y apt-transport-https
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sudo apt-get update
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sudo apt-get install {the .NET Core package}
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```
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### Failed to fetch
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[!INCLUDE [package-manager-failed-to-fetch-deb](includes/package-manager-failed-to-fetch-deb.md)]

‎docs/core/toc.yml

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href: install/how-to-detect-installed-versions.md
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- name: Linux package managers
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items:
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- name: Ubuntu 20.04
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href: install/linux-package-manager-ubuntu-2004.md
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- name: Ubuntu 19.10
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href: install/linux-package-manager-ubuntu-1910.md
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- name: Ubuntu 19.04

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