Continue your lesson
Connect the command you run to the file, process, service, permission, or kernel state it changes.
Block 1 of 3Compare Logical Volume Manager · /etc/fstab
Current · 8 min
Compare Logical Volume Manager · /etc/fstab
Optional concept notes
Logical Volume Manager
Combines physical volumes into volume groups, then allocates resizable logical volumes from them.
/etc/fstab
Defines filesystems and mount options normally applied during boot.
Complete one provider lesson, then answer four related questions. That is enough for today; more practice is optional.
Your lesson stays open here while the provider opens in another tab. Choose one source; the notes above are optional.
Block 2 of 3Understand RAID
12 min
Understand RAID
Optional concept notes
RAID
Combines disks for selected redundancy capacity or performance characteristics.
Complete one provider lesson, then answer four related questions. That is enough for today; more practice is optional.
Your lesson stays open here while the provider opens in another tab. Choose one source; the notes above are optional.
Block 3 of 3Understand fsck
8 min
Understand fsck
Optional concept notes
fsck
Checks and repairs supported filesystem structures while safely unmounted.
Complete one provider lesson, then answer four related questions. That is enough for today; more practice is optional.
Your lesson stays open here while the provider opens in another tab. Choose one source; the notes above are optional.
Practice the reasoning here
Use a disposable Linux system. Predict a command's effect, run it, inspect exit status and logs, then restore the starting state.
- State the expected result before changing or testing anything.
- Name the observation, command, log, or report that would confirm it.
- Explain why the closest alternative does not fit the same requirement.
Check the whole objective
This unlocks objective 1.3 for recall. The latest checkpoint needs 70% or higher; a lower result puts the lesson back near the front of your timeline.