Mounting and unmounting filesystems
Lesson 3 of 7 in objective 104. Devices, Linux filesystems, filesystem hierarchy standard, part of LPIC-1 Exam 101-500.
- Objective
- 104. Devices, Linux filesystems, filesystem hierarchy standard
- Share of the exam
- 25% (the whole objective)
- Questions in this lesson
- 6
- Signed for by a person
- 0
Partly checked. None of the 6 questions here has been read against the cited source by a person. 6 questions have been checked against their cited clause by an automated pass — which is not the same thing, and is not a signature.
Only questions a person has signed for are used in mock exams here. That is the whole difference between the two kinds of checking above.
Questions in this lesson
- In an /etc/fstab line, what does the sixth and last field control? machine-checked
- A server's /etc/fstab refers to data partitions as /dev/sdb1 and /dev/sdc1. After an extra disk controller is installed, the machine fails to boot correctly. Why does using UUID= instead avoid this class of failure? machine-checked
- Which /etc/fstab mount option keeps a filesystem from being mounted by `mount -a` during boot, while still allowing an administrator to mount it later by naming its mount point? machine-checked
- The root filesystem is mounted read-write and you need it read-only for a moment. You obviously cannot unmount it. Which command changes it in place? machine-checked
- You need the UUID of the filesystem on /dev/sda1 to write a persistent /etc/fstab entry. Select the TWO commands that will show it. machine-checked
- `umount /mnt/data` fails with 'target is busy'. Select the TWO commands that help you find out which processes are keeping it busy. machine-checked
Drill this lesson
A lesson is one sitting: the trainer draws a short run from these questions alone and spaces the ones you get wrong.
Practise Mounting and unmounting filesystems
The rest of objective 104
- Partitions and filesystems
- Keeping filesystems intact
- Mounting and unmounting filesystems — you are here
- Disk quotas
- File permissions, ownership and disk quotas
- Hard links and symbolic links
- Finding files and where they belong