LFCS Boot Process and System Initialization Flashcards
6 cards from real LFCS Certification practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 6 LFCS Boot Process and System Initialization flashcards as text
What file contains the GRUB 2 configuration used at boot time on most Linux systems?
Answer: /boot/grub2/grub.cfg
GRUB 2 reads /boot/grub2/grub.cfg at boot; this file is auto-generated and should not be edited directly.
Which command regenerates the GRUB 2 configuration file on RHEL/CentOS-based systems?
Answer: grub2-mkconfig
grub2-mkconfig reads /etc/default/grub and scripts in /etc/grub.d/ to produce a new grub.cfg.
Which file stores default GRUB 2 settings such as timeout and GRUB_CMDLINE_LINUX?
Answer: /etc/default/grub
/etc/default/grub is the human-editable file where you set timeout, default entry, and kernel parameters.
Which kernel parameter passed at the GRUB boot line boots the system into rescue mode?
Answer: systemd.unit=rescue.target
Appending systemd.unit=rescue.target tells systemd to bring up only the rescue target instead of the default.
What command installs the GRUB 2 bootloader to the MBR of the disk /dev/sda?
Answer: grub2-install /dev/sda
grub2-install writes the GRUB stage 1 code to the MBR of the specified disk device, not a partition.
Which directory contains the scripts that grub2-mkconfig reads to generate /boot/grub2/grub.cfg?
Answer: /etc/grub.d/
/etc/grub.d/ holds numbered scripts (00_header, 10_linux, 40_custom, etc.) executed by grub2-mkconfig.
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