An administrator has just completed the installation of a new kernel on a Linux system. After installing the kernel and related modules, they wish to update the GRUB2 bootloader configuration to ensure that the system will boot using this new kernel. Which of the following commands should the administrator run to correctly generate a new configuration and ensure the new kernel is bootable?
The command 'grub2-mkconfig -o /boot/grub2/grub.cfg' generates a new GRUB2 configuration file and writes it to the default location for GRUB2's configuration. The '-o' option is used to specify the output file and is critical for actual application of changes. Other options shown might seem plausible, but they do not perform the task of updating the configuration.
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What exactly does the 'grub2-mkconfig' command do?
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What happens if I don't run 'grub2-mkconfig' after installing a new kernel?
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What are the other commands referenced in the options, and what do they do?