Which TWO statements about GRUB 2 are correct?
LPIC-1 Exam 101-500, objective 102. Linux installation and package management medium
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How these questions are written — where each question comes from, what the verification ledger records, and what happens when one is found wrong.
The options
Choose 2.
Correct In GRUB 2 device notation, (hd0,msdos2) is the second partition of the first disk.
Correct. GRUB 2 still counts disks from zero but numbers partitions from one, and it may prefix the partition number with the table type, msdos or gpt.
Correct The menu file is produced by grub-mkconfig from /etc/default/grub and the scripts in /etc/grub.d.
Correct. That generation step is what makes grub.cfg a build artefact rather than a file to edit.
Not correct GRUB 2 requires a /boot/grub/menu.lst file to display a menu.
Wrong. menu.lst is the GRUB Legacy configuration file; GRUB 2 reads grub.cfg.
Not correct grub-install writes the menu entries for the installed kernels.
Wrong. grub-install installs the boot images and modules; the menu entries come from grub-mkconfig, usually run by the kernel package's post-install hooks.
Not correct GRUB 2 cannot boot a system whose /boot is a separate partition.
Wrong. A separate /boot is the normal case; GRUB has filesystem modules precisely so it can read that partition before the kernel starts.
Why
Two facts separate GRUB 2 from its predecessor in exam questions. Its partition numbering starts at one, so the first partition of the first disk is (hd0,1) or (hd0,msdos1), whereas GRUB Legacy wrote (hd0,0). And its configuration is generated: settings go in /etc/default/grub, custom entries in /etc/grub.d, and grub-mkconfig -o /boot/grub/grub.cfg assembles them.
Where this comes from
- Cited
- manual page grub-mkconfig(8)
Practise this
Reading one question is not practice. The trainer will draw a short set from objective 102 and space the ones you get wrong.
More questions on this objective
- A mail server keeps filling its root filesystem because spooled mail and logs grow without bound, and when the disk fills the whole system becomes unusable. Which single change to the disk layout most directly contains that failure? machine-checked
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- You are laying out storage for a general-purpose Linux server. Which TWO of the following are genuine reasons to use LVM for the data filesystems rather than plain partitions? machine-checked
- Which file is the configuration file that GRUB 2 generates, and which administrators are told not to edit by hand on a typical Linux distribution? machine-checked
- You replaced the boot disk in a BIOS/MBR system and need to write the GRUB 2 boot loader into the master boot record of /dev/sda, installing the required GRUB modules under /boot. Which command does that? machine-checked
- 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. machine-checked