As reported by a majority of Apple users, they can’t access or install their Linux profile on Mac due to the presence of the T2 chip. Apple has launched this new chip T2 ‘secure enclave’ and included it in its latest series including MacBook Air and Mac Mini systems.


The purpose of designing this chip is to add some additional features to tighten the device’s security. It is also effective enough to handle advanced encryption and to manage Apple’s Touch ID. Another main objective of this T2 Security Chip is to ensure that the microphone doesn’t receive any signal while closing the lid of your Mac-based device.



However, with the inclusion of this chip, you can experience booting issues with the Linux on your Mac. On some Mac machines, the T2 chip can also prevent Linux to install properly cause a technical error.


In this article, you can get some solid information regarding this Linux problem due to Apple’s T2 chip. It will also cover some technical methods that’ll ensure Apple’s not locking you out of Linux on Mac due to this T2 chip. Hence, you can try these troubleshooting tips and check whether you can boot Linux on Mac securely.

Importance of Apple’s T2 Security Chip on Mac Systems

According to Apple’s experts, the custom Mac silicon T2 Security Chip can prevent booting in Linux or any other OS environment that is not recognized by the device. However, the power-users on Apple still have the eligibility to change the device’s settings and avoid this error. Before discussing any fixes, you must be aware of some technical information on T2 Security Chip in Apple.

What is the Role of T2 Security Chip?

The developers at Apple.Inc have designed this chip in order to offer many exciting features to enhance the user’s experience on Mac. With this T2 Security Chip, it enables the device to boot securely and provide AES 256-bit data encryption in real-time. It is also an essential component for handling Touch ID authentication for users on both MacBook Pro and Air devices.


However, many of Apple’s customers are unaware of this fact that the feature of T2 chip is an optional choice for them. In case, they want to boot into Linux without this security chip, it is quite possible. For doing so, you need to make sure that you are disabling the secure boot feature on Mac and start booting Linux.


How to Boot Linux on Mac That is Using Apple’s T2 Security Chip?

In order to boot Linux, you will have to disable the entire policy of ‘Secure boot’ on your Linux system. However, for disabling this feature, you need to utilize Apple’s Startup Security Utility program.


The developers usually provide this tool for Mac-based devices, which are shipped along with T2 security chip. So, you can easily access this utility software while booting into your macOS Recovery. Also, it allows the users to go through a wide range of settings regarding the security policy on Mac.


According to a statement from Apple, the customers will have full control over the device’s settings. However, this is applicable to computers that come with the T2 chip. Hence, they can decide whether to downgrade or disable the functionality of Secure Boot on their Mac based computers. So, let’s take a look at the steps to disable the default feature of ‘Full Security’ on Mac and boot Linux.

Solution to Resolve Locking Out Error on Linux Due to the T2 Security Chip

Before going through the steps, check this information regarding the ‘Full Security’ feature on Mac systems. This aspect is set as the default settings for Secure Boot in Linux, which ensures the highest level of security. So, during the startup process in macOS, the system checks whether you are using a legitimate version of Linux or not. In case, Mac fails to identify the OS version on your device, it tries to connect Apple server for further verification. Hence, in order to change the settings of ‘Full Security’ and disable Secure Boot feature, try the following steps.



Follow These Instructions

  • Your first task is to switch on the Mac-based device on which you are unable to boot Linux. As soon as you view the Apple logo on your device’s screen, you need to press and hold Command and R buttons altogether. This will lead to system startup with help from macOS Recovery.
  • Next, navigate to the window of macOS Utilities and hit the tab for ‘Utilities’. Then click on the menu bar and choose ‘Startup Security Utility’. Now, you will be asked to enter your macOS password for confirming the authentication process. Also, you need to select an administrator account and provide its password for accessing it.
  • So, below the section of ‘Secure Boot’ on the ‘Startup Security Utility’ window, there are three security choices. On selecting the option of ‘Full Security’, it can prevent Linux to boot on Mac due to T2 security chip. Hence, you can change it to ‘No Security’ if you want to boot into Linux on Mac system.

After applying the above steps and selecting ‘No Security’, the T2 Security Chip will not verify the system’s integrity anymore. However, this will remove the Touch ID authentication that you need for using the features on Apple Pay. So, many Mac users have noticed that they can boot into Linux by disabling Secure Boot using the above steps. If the problem persists and Linux doesn’t boot on Mac, they can try another option on the ‘Startup Security Utility’ window. They can change the option for External Boot and make it ‘Allow booting from external media’.

Wrap Up

In this article, you came across this booting error that Linux users can experience on their Mac-based systems. Also, the steps were discussed for booting into Linux while using Mac along with Apple’s T2 Security Chip. Somehow, if none of the steps worked and you are unable to boot Linux on Mac, try some troubleshooting steps from certified Apple experts.

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