tech

🔍 Step 1 — Check your disk layout

Run:

lsblk

You’ll see something like:

sda      40G
├─sda1    1G
├─sda2    2G
└─sda3   17G   ← THIS is the one we grow
 └─ubuntu--vg-ubuntu--lv  ~19G

👉 Remember: sda3 is important