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fredyfx
Asked: 2020-11-13 21:41:57 +0800 CST 2020-11-13 21:41:57 +0800 CST

Problem installing Dot Net Core on Debian 9

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I have followed the official Microsoft documentation to install Dot Net Core on the server, it says to run the following commands:

wget -qO- https://packages.microsoft.com/keys/microsoft.asc | gpg --dearmor > microsoft.asc.gpg
sudo mv microsoft.asc.gpg /etc/apt/trusted.gpg.d/
wget -q https://packages.microsoft.com/config/debian/9/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

So far so good, the problem comes when executing the command:

sudo apt-get update

Resulting in the following error:

Fetched 91.8 kB in 0s (103 kB/s)
Reading package lists... Done
E: The method driver /usr/lib/apt/methods/https could not be found.
N: Is the package apt-transport-https installed?
E: Failed to fetch https://packages.microsoft.com/debian/9/prod/dists/stretch/InRelease
E: Some index files failed to download. They have been ignored, or old ones used instead.

What do we do, cry?

debian

1 Answers

  1. Best Answer

    First, let's calm down. Second, the error says the following:

    E: The method driver /usr/lib/apt/methods/https could not be found.
N: Is the package apt-transport-https installed?

    We have to verify if the package apt-transport-httpsis installed, this is done using the following command:

    apt-get install apt-transport-https

    Which gives us as a result:

    Reading package lists... Done
Building dependency tree
Reading state information... Done
The following NEW packages will be installed:
  apt-transport-https
0 upgraded, 1 newly installed, 0 to remove and 36 not upgraded.
Need to get 171 kB of archives.
After this operation, 243 kB of additional disk space will be used.
Get:1 http://mirrors.*************.com/debian stretch/main amd64 apt-transport-https amd64 1.4.8 [171 kB]
Fetched 171 kB in 0s (10.0 MB/s)
Selecting previously unselected package apt-transport-https.
(Reading database ... 108493 files and directories currently installed.)
Preparing to unpack .../apt-transport-https_1.4.8_amd64.deb ...
Unpacking apt-transport-https (1.4.8) ...
Setting up apt-transport-https (1.4.8) ...

    Yes indeed, that package was uninstalled, so now let's try again:

    sudo apt-get update

    And we have the magic!

    Get:10 https://packages.microsoft.com/debian/9/prod stretch/main amd64 Packages [29.7 kB]
Fetched 32.6 kB in 0s (33.5 kB/s)
Reading package lists... Done

    The emotion of seeing that everything keeps moving forward!

    Reading package lists... Done
Building dependency tree
Reading state information... Done
The following additional packages will be installed:
  aspnetcore-runtime-2.1 dotnet-host dotnet-hostfxr-2.1 dotnet-runtime-2.1
  dotnet-runtime-deps-2.1 liblttng-ust-ctl2 liblttng-ust0 liburcu4
The following NEW packages will be installed:
  aspnetcore-runtime-2.1 dotnet-host dotnet-hostfxr-2.1 dotnet-runtime-2.1
  dotnet-runtime-deps-2.1 dotnet-sdk-2.1 liblttng-ust-ctl2 liblttng-ust0
  liburcu4
0 upgraded, 9 newly installed, 0 to remove and 36 not upgraded.
Need to get 131 MB of archives.
After this operation, 379 MB of additional disk space will be used.
Do you want to continue? [Y/n] y

    And after a while we have:

    Welcome to .NET Core!
---------------------
Learn more about .NET Core: https://aka.ms/dotnet-docs
Use 'dotnet --help' to see available commands or visit: https://aka.ms/dotnet-cli-docs

Telemetry
---------
The .NET Core tools collect usage data in order to help us improve your experience. The data is anonymous and doesn't include command-line arguments. The data is collected by Microsoft and shared with the community. You can opt-out of telemetry by setting the DOTNET_CLI_TELEMETRY_OPTOUT environment variable to '1' or 'true' using your favorite shell.

Read more about .NET Core CLI Tools telemetry: https://aka.ms/dotnet-cli-telemetry

Configuring...
--------------
A command is running to populate your local package cache to improve restore speed and enable offline access. This command takes up to one minute to complete and only runs once.
Processing triggers for libc-bin (2.24-11+deb9u3) ...

    And just in case, we verify again with the command:

    dotnet --info

    Now yes, with all the power 2.0!

    .NET Core SDK (reflecting any global.json):
 Version:   2.1.500
 Commit:    b68b931422

Runtime Environment:
 OS Name:     debian
 OS Version:  9
 OS Platform: Linux
 RID:         debian.9-x64
 Base Path:   /usr/share/dotnet/sdk/2.1.500/

Host (useful for support):
  Version: 2.1.6
  Commit:  3f4f8eebd8

.NET Core SDKs installed:
  2.1.500 [/usr/share/dotnet/sdk]

.NET Core runtimes installed:
  Microsoft.AspNetCore.All 2.1.6 [/usr/share/dotnet/shared/Microsoft.AspNetCore.All]
  Microsoft.AspNetCore.App 2.1.6 [/usr/share/dotnet/shared/Microsoft.AspNetCore.App]
  Microsoft.NETCore.App 2.1.6 [/usr/share/dotnet/shared/Microsoft.NETCore.App]

To install additional .NET Core runtimes or SDKs:
  https://aka.ms/dotnet-download

    Now everything is in order, may the force be with you :D

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