Ubuntu Partition Resize Guide
Goal:
Make / = 40GB (Add 15GB from /home)
Before You Start
- Electricity stable
- Charger connected
- Battery near 100%
- Backup important files
- Do NOT rush
Step 1 — Boot Live USB
- Insert Ubuntu USB
- Restart laptop
- Boot from USB
- Select Try Ubuntu (NOT Install)
Step 2 — Open GParted
Open Terminal:
Ctrl + Alt + T
sudo gparted
Step 3 — Select Correct Disk
Select your 1TB Toshiba HDD.
DO NOT select NVMe (Windows disk).
Step 4 — Check Layout
[ EFI ] [ / ] [ /home ]
/home must be directly after /
Step 5 — Shrink /home
- Right-click
/home
- Select Resize/Move
- Reduce size by 15GB
- Click Resize
15GB unallocated space should appear.
Step 6 — Expand /
- Right-click
/
- Select Resize/Move
- Drag to include 15GB
- New size should show 40GB
- Click Resize
Step 7 — Apply Changes
Click the green ✔ Apply button.
Do NOT:
- Close laptop
- Interrupt process
- Move laptop
Wait 10–40 minutes.
Step 8 — Reboot
- Close GParted
- Restart
- Remove USB
After boot, check:
df -h
You should see:
/ 40G
Resize complete successfully.