- This document is a Mac OS X manual page. Manual pages are a command-line technology for providing documentation. You can view these manual pages locally using the man(1) command. These manual pages come from many different sources, and thus, have a variety of writing styles.
- Step 2: Because of your Mac’s security, you won’t be able to install Code Blocks right away and this window will pop-up. Click okay and move on to the next step. Click okay and move on to the next step.
Like every other devices, if you are a newcomer to Mac OS X, you might be going through several issues ranging from software malfunctioning to booting issues as there are hell lot of a new things to know for those who haven’t used it before. There could also be some serious problems other than your personal errors, which at times would prevent your operating system from opening. On such occasions, it is safer to boot Mac using Safe Mode.
Run Code in Any Language. CodeRunner was built on the principle that you need to be able to run your code instantly, in any language. CodeRunner can run code in 25 languages out-of-the-box, and can be easily extended to support other languages. Adding a language is as easy as entering its terminal command. Prior to its release, Mac OS X 10.0 was code named 'Cheetah' internally at Apple, and Mac OS X 10.1 was code named internally as 'Puma'. After the immense buzz surrounding Mac OS X 10.2, codenamed 'Jaguar', Apple's product marketing began openly using the code names to promote the operating system.
Why and When We Need to Boot Mac in Safe Mode
Safe Mode on Mac, which is commonly termed as Safe Boot is a way actually to boot your operating system by subjugating most of the system softwares and kernel extensions, allowing only the basic essentials required to just run the system. It is often used to troubleshoot your system when you are having trouble with booting your system or any malware has attacked your computer. Malwares are very shrewd in preventing system processes from eradicating their colonial destruction. Thus, booting the system in safe mode prevents the malwares from blocking the process and you can easily get rid of them. Another case is that if you forgot Mac OS admin password, then booting Mac in Safe Mode will help you recover your account password.
Heeding to the importance of the safe mode on Mac we would thereby demonstrate 2 important ways here to securely boot and exit the safe mode.
Also read: How to Boot in Safe Mode on Windows 10?
Method #1: Enter & Exit Safe Mode using Keyboard
In this section we would make use of certain key commands from the keyboard to activate the safe mode instead of trying out complex procedures, thus it is suitable for those who are not adept with handling system commands in Terminals. Simply go through the instructions given below to activate the Safe Mode:
Step 1. Firstly power down the Mac OS X, by clicking “Shut Down….” option from the sub-menu of the “Apple” logo.
Step 2. Now; once it is shut down, turn it on by pressing the power button.
Step 3. Press the “shift” key and hold it the moment you hear the startup sound. Disk sensei 1 2. And keep holding it until the Apple logo appears. You can release the key once the logo has turned up.
Step 4. The operating system would now boot in Safe Mode, which might take few moments as the directory structure integrity is being checked by your Mac.
Step 5. Before entering the Safe Mode, you still need to enter your Password and Username as your conformational credentials to your specified account, though you get to see the Safe Mode displayed on the upper right corner of the screen.
Step 6. Once you are in, you can carry out your necessary tasks with the limited basic tools and system softwares, which will prevent malicious viruses or malwares from being activated.
![Mac os x requirements Mac os x requirements](https://mitchdenny.com/content/images/2015/05/Visual-Studio-Code.png)
Step 7. After you have done your task, click on “Apple” logo and select “Restart” option which would reboot the system in the normal mode.
Step 8. Click Software and you can see the Boot Mode is Normal or Safe.
If you are adept with using Terminal commands, then the next method would be the best option for users like you to follow up.
Don’t miss: I Forgot iCloud Password on iPhone, what should I do?
Method #2: Boot & Exit Mac Safe Mode using Terminal
Here in this section, we would make use of the Terminal tool which is command interface for UNIX-based operating systems, and very much similar to cmd in Windows. All that you have to do is to follow the given steps:
Step 1. Go to the “Utilities” folder from the “Applications” folder and open the “Terminal” option.
Step 2. Once the empty dialog box of the “Terminal” turns up, paste the following command and press “Return”:
sudo nvram boot-args=”-x”
Step 3. Enter your Mac password if asked.
Step 4. Now; reboot your computer by clicking “Restart” option from the context menu of Apple logo.
Step 5. Log-in with your Mac username and password.
Step 6. Once you are in the Safe Mode, perform all your necessary functions, and once you are done, open the “Terminal’ dialog box again and type in the following command and press “Return”:
sudo nvram boot-args=””
Step 7. Now; reboot your Mac and it would boot in the normal mode once again allowing you to use all the system tools and extensions.
Conclusions:
Safe Mode is a magnificent boot option to enter your operating system in such a way that nothing harmful or serious can sneak in to interrupt your task. But you cannot remain in the safe mode all the time, as you would definitely need to exercise your entire admin privileges to carry out your daily tasks, so simply follow the guidelines outlined above to accurately and securely enter safe mode and exit it afterwards.
Read More:
-->In this article, you'll learn how to install .NET Core on macOS. .NET Core is made up of the runtime and the SDK. The runtime is used to run a .NET Core app and may or may not be included with the app. The SDK is used to create .NET Core apps and libraries. The .NET Core runtime is always installed with the SDK.
The latest version of .NET Core is 3.1.
Supported releases
The following table is a list of currently supported .NET Core releases and the versions of macOS they're supported on. These versions remain supported either the version of .NET Core reaches end-of-support.
- A ✔️ indicates that the version of .NET Core is still supported.
- A ❌ indicates that the version of .NET Core isn't supported.
Operating System | .NET Core 2.1 | .NET Core 3.1 | .NET 5 Preview |
---|---|---|---|
macOS 10.15 'Catalina' | ✔️ 2.1 (Release notes) | ✔️ 3.1 (Release notes) | ✔️ 5.0 Preview (Release notes) |
macOS 10.14 'Mojave' | ✔️ 2.1 (Release notes) | ✔️ 3.1 (Release notes) | ✔️ 5.0 Preview (Release notes) |
macOS 10.13 'High Sierra' | ✔️ 2.1 (Release notes) | ✔️ 3.1 (Release notes) | ✔️ 5.0 Preview (Release notes) |
macOS 10.12 'Sierra' | ✔️ 2.1 (Release notes) | ❌ 3.1 (Release notes) | ❌ 5.0 Preview (Release notes) |
Unsupported releases
The following versions of .NET Core are ❌ no longer supported. The downloads for these still remain published:
- 3.0 (Release notes)
- 2.2 (Release notes)
- 2.0 (Release notes)
Runtime information
The runtime is used to run apps created with .NET Core. When an app author publishes an app, they can include the runtime with their app. If they don't include the runtime, it's up to the user to install the runtime.
There are three different runtimes you can install on macOS:
ASP.NET Core runtime
Runs ASP.NET Core apps. Includes the .NET Core runtime.
Runs ASP.NET Core apps. Includes the .NET Core runtime.
.NET Core runtime
This runtime is the simplest runtime and doesn't include any other runtime. It's highly recommended that you install ASP.NET Core runtime for the best compatibility with .NET Core apps.
This runtime is the simplest runtime and doesn't include any other runtime. It's highly recommended that you install ASP.NET Core runtime for the best compatibility with .NET Core apps.
SDK information
The SDK is used to build and publish .NET Core apps and libraries. Installing the SDK includes both runtimes: ASP.NET Core and .NET Core.
Dependencies
.NET Core is supported on the following macOS releases:
.NET Core Version | macOS | Architectures | |
---|---|---|---|
3.1 | High Sierra (10.13+) | x64 | More information |
3.0 | High Sierra (10.13+) | x64 | More information |
2.2 | Sierra (10.12+) | x64 | More information |
2.1 | Sierra (10.12+) | x64 | More information |
Beginning with macOS Catalina (version 10.15), all software built after June 1, 2019 that is distributed with Developer ID, must be notarized. This requirement applies to the .NET Core runtime, .NET Core SDK, and software created with .NET Core.
The installers for .NET Core (both runtime and SDK) versions 3.1, 3.0, and 2.1, have been notarized since February 18, 2020. Prior released versions aren't notarized. If you run a non-notarized app, you'll see an error similar to the following image:
For more information about how enforced-notarization affects .NET Core (and your .NET Core apps), see Working with macOS Catalina Notarization.
libgdiplus
.NET Core applications that use the System.Drawing.Common assembly require libgdiplus to be installed.
An easy way to obtain libgdiplus is by using the Homebrew ('brew') package manager for macOS. After installing brew, install libgdiplus by executing the following commands at a Terminal (command) prompt:
Install with an installer
macOS has standalone installers that can be used to install the .NET Core 3.1 SDK:
Download and manually install
As an alternative to the macOS installers for .NET Core, you can download and manually install the SDK and runtime. Manual install is usually performed as part of continuous integration testing. For a developer or user, it's generally better to use an installer.
If you install .NET Core SDK, you don't need to install the corresponding runtime. First, download a binary release for either the SDK or the runtime from one of the following sites:
- ✔️ .NET 5.0 preview downloads
- ✔️ .NET Core 3.1 downloads
- ✔️ .NET Core 2.1 downloads
Next, extract the downloaded file and use the
export
command to set variables used by .NET Core and then ensure .NET Core is in PATH.To extract the runtime and make the .NET Core CLI commands available at the terminal, first download a .NET Core binary release. Then, open a terminal and run the following commands from the directory where the file was saved. The archive file name may be different depending on what you downloaded.
Mac Os X Download
Use the following command to extract the runtime:
Use the following command to extract the SDK:
Tip
The preceding
export
commands only make the .NET Core CLI commands available for the terminal session in which it was run.You can edit your shell profile to permanently add the commands. There are a number of different shells available for Linux and each has a different profile. For example:
- Bash Shell: ~/.bash_profile, ~/.bashrc
- Korn Shell: ~/.kshrc or .profile
- Z Shell: ~/.zshrc or .zprofile
Edit the appropriate source file for your shell and add
:$HOME/dotnet
to the end of the existing PATH
statement. If no PATH
statement is included, add a new line with export PATH=$PATH:$HOME/dotnet
.![Mac Mac](https://www.volexity.com/wp-content/uploads/2017/07/ge-javascript-1024x554.png)
Also, add
export DOTNET_ROOT=$HOME/dotnet
to the end of the file.This approach lets you install different versions into separate locations and choose explicitly which one to use by which application.
Install with Visual Studio for Mac
Visual Studio for Mac installs the .NET Core SDK when the .NET Core workload is selected. To get started with .NET Core development on macOS, see Install Visual Studio 2019 for Mac. For the latest release, .NET Core 3.1, you must use the Visual Studio for Mac 8.4.
Install alongside Visual Studio Code
Visual Studio Code is a powerful and lightweight source code editor that runs on your desktop. Visual Studio Code is available for Windows, macOS, and Linux.
Code 2 Mac Os Versions
While Visual Studio Code doesn't come with an automated .NET Core installer like Visual Studio does, adding .NET Core support is simple.
- Download and install Visual Studio Code.
- Download and install the .NET Core SDK.
- Install the C# extension from the Visual Studio Code marketplace.
Install with bash automation
The dotnet-install scripts are used for automation and non-admin installs of the runtime. You can download the script from the dotnet-install script reference page.
The script defaults to installing the latest long term support (LTS) version, which is .NET Core 3.1. You can choose a specific release by specifying the
current
switch. Include the runtime
switch to install a runtime. Otherwise, the script installs the SDK.Note
The command above installs the ASP.NET Core runtime for maximum compatability. The ASP.NET Core runtime also includes the standard .NET Core runtime.
Docker
Containers provide a lightweight way to isolate your application from the rest of the host system. Containers on the same machine share just the kernel and use resources given to your application.
.NET Core can run in a Docker container. Official .NET Core Docker images are published to the Microsoft Container Registry (MCR) and are discoverable at the Microsoft .NET Core Docker Hub repository. Each repository contains images for different combinations of the .NET (SDK or Runtime) and OS that you can use.
Code 2 Mac Os 10.13
Microsoft provides images that are tailored for specific scenarios. For example, the ASP.NET Core repository provides images that are built for running ASP.NET Core apps in production.
For more information about using .NET Core in a Docker container, see Introduction to .NET and Docker and Samples.
Next steps
- How to check if .NET Core is already installed.
- Working with macOS Catalina notarization.
- Tutorial: Get started on macOS.
- Tutorial: Create a new app with Visual Studio Code.
- Tutorial: Containerize a .NET Core app.