The Command for Changes to Take Effect
Question
After modifying GNU GRUB's configuration file, which command must be run for the changes to take effect?
Answers
Explanations
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A. B. C. D.D
The correct answer is C. grub.
When changes are made to the configuration file of GNU GRUB (Grand Unified Bootloader), it is necessary to update the configuration file for these changes to take effect.
The configuration file for GRUB is usually located at /boot/grub/grub.cfg on most Linux systems. This file contains the configuration information needed to boot the operating system.
After making changes to the configuration file, the grub command must be run to update the configuration file. This command reads the configuration file and generates the boot loader menu that is displayed when the system is booted. The new configuration settings will be applied after the system is rebooted.
Option A, kill -HUP $(pidof grub), sends a signal to the GRUB process to reload its configuration file. However, this is not the recommended way to update the GRUB configuration file.
Option B, grub-install, is used to install the GRUB boot loader onto a disk. It is not used to update the configuration file.
Option D, "No action is required", is incorrect as changes made to the GRUB configuration file will not take effect until the grub command is run to update the configuration.
