Cohort + async labs · 6 weeks · blended
Kernel & Boot Flow Lab
Trace init systems, journal hints, and recovery modes without guessing.
BRL 890 · informational only
Responsible mentor
Marina Duarte
Linux instructor focused on init stacks and mentor notes that read like field reports.
Program narrative
You map the boot chain on practice VMs, inspect unit activation order, and rehearse safe rollback steps when a service change misbehaves. Labs stay terminal-first with annotated checklists you can reuse on your own hosts.
Included drills
- Boot journal triage scripts you can adapt
- Init target practice on disposable images
- Drills for rescue shell entry and fstab checks
- Mentor-reviewed boot parameter experiments
- Snapshot workflow before risky edits
- Short async reviews of your command logs
- Reference sheet for common firmware messages
Outcomes we expect you to evidence
- Document a boot timeline for a host you maintain
- Choose a recovery path before rebooting blindly
- Explain init dependencies to a teammate clearly
FAQ for this track
No. Labs use remote images. If you want to mirror on metal, we share compatibility notes only—no hardware is included in the fee.
Experience notes
“The Kernel & Boot Flow Lab forced me to narrate each unit activation; the checklist from week two still lives in our ticket template.”
— Igor P. , Support engineer · survey · 5/5
“Mentor markup on my journal excerpts was blunt in a good way—pointed at assumptions I was skipping before reboots.”
— Helena · Regional logistics desk