On a GRUB 2 system whose configuration file is /boot/grub/grub.cfg, type the grub-mkconfig command — including the option and its argument — that regenerates that file.
LPIC-1 Exam 101-500, objective 102. Linux installation and package management medium
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Answer
Type the answer.
Accepted answers
grub-mkconfig -o /boot/grub/grub.cfggrub-mkconfig --output=/boot/grub/grub.cfggrub-mkconfig --output /boot/grub/grub.cfg/usr/sbin/grub-mkconfig -o /boot/grub/grub.cfg
Case sensitive — Linux is, and grading LS as ls would teach a falsehood.
Why
grub-mkconfig writes the generated configuration to standard output unless you redirect it, so the -o (or --output=) option naming /boot/grub/grub.cfg is what actually updates the menu. Debian and Ubuntu ship update-grub as a one-word wrapper for exactly this command; Red Hat family systems using GRUB 2 name the binary grub2-mkconfig and the file /boot/grub2/grub.cfg.
Where this comes from
- Cited
- LPI exam objective 102.2
- What it says
- Regenerating the GRUB 2 configuration file after kernel or option changes.
Practise this
Reading one question is not practice. The trainer will draw a set from objective 102 and space the ones you get wrong.