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APT: no se puede localizar el paquete (aspnetcore/dotnet runtime, Ubuntu)

tag-icon • tag-icon linux ubuntu apt asp.net ubuntu-20.04
APT: no se puede localizar el paquete (aspnetcore/dotnet runtime, Ubuntu)

Estoy intentando instalar el paquete aspnetcore-runtime-3.1, agregué la clave de firma del paquete de Microsoft con

wget https://packages.microsoft.com/config/ubuntu/20.04/packages-microsoft-prod.deb -O packages-microsoft-prod.deb
sudo dpkg -i packages-microsoft-prod.deb

Sin embargo, sudo apt install aspnetcore-runtime-3.1da el error:

Reading package lists... Done
Building dependency tree
Reading state information... Done
E: Unable to locate package aspnetcore-runtime-3.1

La búsqueda del paquete con apt search muestra que el paquete sí existe:

$ sudo apt search aspnetcore
Sorting... Done
Full Text Search... Done
aspnetcore-runtime-2.1/focal 2.1.20-1 amd64
  Microsoft ASP.NET Core 2.1.20 Shared Framework

aspnetcore-runtime-3.1/focal 3.1.6-1 amd64
  Shared Framework for hosting of Microsoft ASP.NET Core applications. It is open source, cross-platform and is supported by Microsoft. We hope you enjoy using it! If you do, please consider joining the active community of developers that are contributing to the project on GitHub (https://github.com/aspnet/AspNetCore). We happily accept issues and PRs.

aspnetcore-targeting-pack-3.1/focal 3.1.3-1 amd64
  Shared Framework for hosting of Microsoft ASP.NET Core applications. It is open source, cross-platform and is supported by Microsoft. We hope you enjoy using it! If you do, please consider joining the active community of developers that are contributing to the project on GitHub (https://github.com/aspnet/AspNetCore). We happily accept issues and PRs

Probé los pasos de solución de problemas enumerados enlos documentos de Microsoft:

sudo dpkg --purge packages-microsoft-prod && sudo dpkg -i packages-microsoft-prod.deb
sudo apt-get update
sudo apt-get install aspnetcore-runtime-3.1

y

sudo apt-get install -y gpg
wget -O - https://packages.microsoft.com/keys/microsoft.asc | gpg --dearmor -o microsoft.asc.gpg
sudo mv microsoft.asc.gpg /etc/apt/trusted.gpg.d/
wget https://packages.microsoft.com/config/ubuntu/20.04/prod.list
sudo mv prod.list /etc/apt/sources.list.d/microsoft-prod.list
sudo chown root:root /etc/apt/trusted.gpg.d/microsoft.asc.gpg
sudo chown root:root /etc/apt/sources.list.d/microsoft-prod.list
sudo apt-get update; \
  sudo apt-get install -y apt-transport-https && \
  sudo apt-get update && \
  sudo apt-get install -y aspnetcore-runtime-3.1

Ambos dan el mismo error. Estoy especialmente confundido porque el paquete obviamente está disponible debido a que se muestra en apt search?

Respuesta1

De acuerdo adocumentación:

:~# cd $HOME
:~# wget https://download.visualstudio.microsoft.com/download/pr/dffd493f-9eb8-483f-81c7-a9e2201574ef/54e7464241e01e7031fd89e6fe88e6da/aspnetcore-runtime-3.1.9-linux-arm64.tar.gz

:~# mkdir -p $HOME/dotnet && tar zxf dotnet.tar.gz -C $HOME/dotnet
:~# export PATH=$PATH:$HOME/dotnet

:~# dotnet --info
  It was not possible to find any installed .NET Core SDKs
  Did you mean to run .NET Core SDK commands? Install a .NET Core SDK from:
      https://aka.ms/dotnet-download

Host (useful for support):
  Version: 3.1.9
  Commit:  774fc3d6a9

.NET Core SDKs installed:
  No SDKs were found.

.NET Core runtimes installed:
  Microsoft.AspNetCore.App 3.1.9 [/root/dotnet/shared/Microsoft.AspNetCore.App]
  Microsoft.NETCore.App 3.1.9 [/root/dotnet/shared/Microsoft.NETCore.App]

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