Learn how to resolve the “grub-mkconfig: command not found” error. Our NFS Support team is here to help you with your questions and concerns.

About “grub-mkconfig: command not found” error

The grub-mkconfig: command not found error message often occurs when the grub-mkconfig command is not available on our system. If you have been coming across this error message, our experts have your back.

In fact, GRUB is a bootloader, commonly used in Linux as well as Unix-like systems to load operating systems.

The grub-mkconfig command helps generate the configuration file for the GRUB bootloader, which in turn loads our operating system.

The configuration file which goes by grub.cfg, consists of details about the available operating systems, boot options, as well as other settings like default boot option, the timeout before the default option is automatically selected, and so on.

How to generate a new grub.cfg file

We can easily generate a new grub.cfg file for our system with this command:

# grub-mkconfig -o /path/to/grub.cfg

Here, the -o option indicates the output file which is /boot/grub/grub.cfg by default.

The grub-mkconfig command locates the configuration files in the /etc/grub.d/ directory. These files have a number prefix that indicates their processing order. Furthermore, the command looks for other files with a .cfg extension in the same directory and then includes them in the generated file.

In fact, our experts recommend running this command after any major changes or updates to the system. This ensures that the boot menu reflects the new changes. Additionally, when we run the command with the -o option, the output file will be in the default location and readable by the bootloader.

grub-mkconfig: command not found- Solution

We can easily resolve the grub-mkconfig: command not found error by installing the package as per the distribution we are using:

• For Debian

  apt-get install grub-pc
• For Ubuntu

  apt-get install lupin-support
• For Arch Linux

  pacman -S grub
• For Alpine

  apk add grub
• For Fedora

  dnf install grub2-common
• For Raspbian

  apt-get install grub2-common
• For Kali Linux

  apt-get install grub-legacy

After installing the package, we will not run into any trouble while running the grub-mkconfig command.

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Conclusion

In summary, our Support Techs introduced us to “grub-mkconfig: command not found” error and demonstrated how to resolve it.