dotnet sdk check on Linux

[VahidN]

Describe the bug

The latest SDK is installed but dotnet sdk check command on Linux (Ubuntu 24.04.2 LTS) reports Try out the newest .NET SDK features with .NET 9.0.201. which is not available for them. It seems SDK versioning on Linux is different than Windows.

.NET SDKs:
Version      Status     
------------------------
9.0.104      Up to date.

Try out the newest .NET SDK features with .NET 9.0.201.

.NET Runtimes:
Name                          Version      Status     
------------------------------------------------------
Microsoft.AspNetCore.App      9.0.3        Up to date.
Microsoft.NETCore.App         9.0.3        Up to date.


The latest versions of .NET can be installed from https://aka.ms/dotnet-core-download. For more information about .NET lifecycles, see https://aka.ms/dotnet-core-support.

To Reproduce

Run dotnet sdk check command on Linux (Ubuntu 24.04.2 LTS).

Exceptions (if any)

Further technical details

• Include the output of dotnet --info

.NET SDK:
 Version:           9.0.104
 Commit:            7931ad4860
 Workload version:  9.0.100-manifests.dc2cb94f
 MSBuild version:   17.12.27+7931ad486

Runtime Environment:
 OS Name:     ubuntu
 OS Version:  24.04
 OS Platform: Linux
 RID:         ubuntu.24.04-x64
 Base Path:   /usr/lib/dotnet/sdk/9.0.104/

.NET workloads installed:
There are no installed workloads to display.
Configured to use loose manifests when installing new manifests.

Host:
  Version:      9.0.3
  Architecture: x64
  Commit:       7931ad4860

.NET SDKs installed:
  9.0.104 [/usr/lib/dotnet/sdk]

.NET runtimes installed:
  Microsoft.AspNetCore.App 9.0.3 [/usr/lib/dotnet/shared/Microsoft.AspNetCore.App]
  Microsoft.NETCore.App 9.0.3 [/usr/lib/dotnet/shared/Microsoft.NETCore.App]

Other architectures found:
  None

Environment variables:
  Not set

global.json file:
  Not found

Learn more:
  https://aka.ms/dotnet/info

Download .NET:
  https://aka.ms/dotnet/download

I couldn't figure out the best area label to add to this issue. If you have write-permissions please help me learn by adding exactly one area label.

I couldn't figure out the best area label to add to this issue. If you have write-permissions please help me learn by adding exactly one area label.

[edvilme]

@dotnet/source-build I think this is related to changes on the source-build version of the sdk

[mthalman]

Source built versions of the SDK by Linux distros, such as Ubuntu here, currently only have 1xx versions of the SDK available to them. So I agree that the message in the output here is confusing since Ubuntu doesn't provide a 2xx feature band of the SDK. Support for multiple SDK feature bands is planned for .NET 10: dotnet/source-build#3667. But even when support for that is available, it's ultimately the choice of the distro to determine what they will release. So IMO, it's the distro maintainers that would need to customize this output appropriately.

cc @dotnet/distro-maintainers

[milkshakeuk]

This is really disappointing that Microsoft is recommending we use the package manager (ubuntu) to install the dotnet SDK but it doesn't install the latest SDK, this is the same issue I am facing, I don't seem to be able to use the package manager to have multiple versions of the SDK i.e. 8.0.114, 8.0.310, 8.0.407 etc

dotnet sdk check

.NET SDKs:
Version      Status     
------------------------
8.0.114      Up to date.
9.0.104      Up to date.

Try out the newest .NET SDK features with .NET 9.0.202.

.NET Runtimes:
Name                          Version      Status     
------------------------------------------------------
Microsoft.AspNetCore.App      8.0.14       Up to date.
Microsoft.NETCore.App         8.0.14       Up to date.
Microsoft.AspNetCore.App      9.0.3        Up to date.
Microsoft.NETCore.App         9.0.3        Up to date.


The latest versions of .NET can be installed from https://aka.ms/dotnet-core-download. For more information about .NET lifecycles, see https://aka.ms/dotnet-core-support.

its also strange that its not saying 8.0.407 is available?