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Canonical adds .NET to Ubuntu 22.04

Canonical is incorporating Microsoft's ASP.NET and .NET SDK into its
latest Long Term Support version of Ubuntu.
steven-vaughan-nichols
Written by Steven Vaughan-Nichols, Senior Contributing Editor on Aug.
16, 2022

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  * 
  * 
  * 
  * 

Ubuntu and .NET logos
Canonical

Microsoft and Canonical, the company behind Ubuntu, have announced
native .NET availability in Ubuntu 22.04. While open-source .NET has
long been available in Ubuntu and other Linux distributions, this
collaboration by Microsoft and Canonical will better secure the .NET
software supply chain with enterprise-grade support. 

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Specifically, .NET 6 developers can install the .NET 6 packages on
Ubuntu with a single, simple command:

#sudo apt install dotnet6 

That's all there is to it. 

Canonical has also released tiny new Open Container Initiative (OCI)
.NET 6 LTS and ASP.NET compliant appliance images. These "Chiseled
Ubuntu Containers" images come without a shell, package manager, or
anything that's not needed, making them more secure out of the box. 

These chiseled images are about 100MB smaller than their
predecessors. Indeed, the smallest image comes in at 12.9MB, with
only the .NET runtime dependencies for self-contained .NET
applications. Combined, these factors make the Chiseled images ideal
for cloud-based containers.

The foundation for these .NET packages is a new Ubuntu .deb package,
which Canonical and Microsoft built together. Their goal is to
deliver timely security patches and .NET releases to Ubuntu
developers. They'll do this by having Microsoft share Common
Vulnerabilities and Exposures (CVE) security information, including
code, with Canonical ahead of public releases. In return, Canonical
will share security data with Microsoft before publication.

Canonical will also work in concert with Microsoft's new distro
maintainer .NET group. One of its goals is to secure the software
supply chain from source to packages. 

This means the two companies will work directly together with no
intermediaries. "We now have what's effectively a zero-distance
supply chain for all Canonical assets," said Richard Lander,
Microsoft's .NET Program Manager, in a press statement.

Canonical and Microsoft are also working together to ensure that new
.NET releases are coordinated with new Ubuntu releases. In practice,
this means that the .NET LTS, which ships in November of odd years,
will be packaged into the Ubuntu LTS in April of the following even
year.

These .NET deb packages are now in Ubuntu Jammy Jellyfish 22.04 LTS
for the x64 architecture. They will soon be available for the Arm64
architecture and Canonical's other LTS Ubuntu releases. 

Related Stories:

  * Microsoft repents of its open-source .NET blunder
  * Microsoft makes Visual Studio 2022 and .NET 6 generally available
  * Ubuntu Core brings real-time processing to Linux IoT

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