Create package for Raspberry Pi OS (ARM64 and ARM32)

[Petermarcu]

@RussKeldorph commented on Mon Jul 30 2018

From @ygoe on June 30, 2018 14:13

While there is a working binary download for dotnet (.NET Core) for ARM32 that works on a Raspberry Pi B 3+ with a current Raspbian OS, there are no instructions how to install it. And there are no packages for the OS, too. So it's a bit of a mystery how to actually make .NET Core work on a Raspi.

I think there should be a package for that OS. It should be as simple as that:

sudo apt install dotnet

Maybe a custom package source needs to be added, but definitely no manual tar file works. Mono was easier to install when it was current like 5 years ago.

Since the docker support on the Raspi with dotnet-runtime packages is very poor (multi-arch fails, need to select arm32 image specifically, can't get my app in a custom image), I need to install .NET Core on the Raspi OS itself.

Copied from original issue: dotnet/coreclr#18732

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@RussKeldorph commented on Mon Jul 30 2018

From @ghost on June 30, 2018 16:45

Current blocker for ARM32 in general is https://github.com/dotnet/cli/issues/8998. In my understanding it's about couple of lines of XML changes in dotnet/cli to pack the right binaries (like done for ARM64 https://github.com/dotnet/cli/pull/9011/files) and then testing cross build on x64 (which is a more involved task).
That said, CoreCLR/CoreFx/CoreSetup parts for ARM32 are done.

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@RussKeldorph commented on Mon Jul 30 2018

@Petermarcu Wasn't sure how big the gap is or where this request should be tracked. Sorry if this is already covered somewhere else.

[GabrielJadderson]

Dave wrote an article a year ago on where to download and how to install dotnet 2.0.0
I can confirm it still works on the latest Raspbian release.

That article seems to be the only way to install dotnet and it's just directly downloading the binaries, move them to /opt/, and create symbolic link to /usr/local/bin

RaspberryPiInstructions.md links to the official MS download for dotnet, and the instructions for Debian 9 do not work for Raspbian.

[Spacefish]

why not just publish the app on a supported architecture and target arm-32, so every .so file required get´s copied to the publish folder even the CLR and you don´t need to install anything on the Rasbian, just copy over your application.

[ygoe]

@Spacefish You could do that. That makes 70 MB for the simplest of an app.

[sdmaclea]

Current blocker for ARM32 in general is dotnet/cli#8998. In my understanding it's about couple of lines of XML changes in dotnet/cli to pack the right binaries (like done for ARM64 https://github.com/dotnet/cli/pull/9011/files) and then testing cross build on x64 (which is a more involved task).
That said, CoreCLR/CoreFx/CoreSetup parts for ARM32 are done.

@jeffschwMSFT I did the equivalent arm64 work for this. Do you want me to assign myself dotnet/cli#8998 ?

[jeffschwMSFT]

Sounds good, thanks @sdmaclea

[dagood]

Duplicate of https://github.com/dotnet/core-setup/issues/4560

[ygoe]

@dagood Ehm, the other issue is about ARM64, right? This issue is about Raspbian OS and ARM32. I can't see how that's a duplicate.

[dagood]

Ah, we were looking at this in a triage meeting and I guess we overlooked that. IIRC they are pretty much the same from the packaging + release perspective, so they'll be done at the same time, but if we really want to close one we should make sure that's reflected.

Reopening, @leecow PTAL.