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Upgrade Guide: Ubuntu 22.04 LTS → 24.04.4 LTS (Noble Numbat) - Printable Version

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+--- Thread: Upgrade Guide: Ubuntu 22.04 LTS → 24.04.4 LTS (Noble Numbat) (/showthread.php?tid=26)

Upgrade Guide: Ubuntu 22.04 LTS → 24.04.4 LTS (Noble Numbat) - aniket.pitre - 04-07-2026

Purpose: Upgrade Ubuntu systems from 22.04 LTS to 24.04 LTS with full step-by-step procedure (including what appears on screen during upgrade)
Document Type: Operational Runbook
? Step 1 — Check Current Version
Code:
cat /etc/os-release
? Confirm:
  • VERSION="22.04 LTS"
  • CODENAME=jammy
? Step 2 — Update Current System
Code:
sudo apt update && sudo apt upgrade
? During this step:
  • You may see package list fetching
  • If prompted:
    • Press Y to continue
? Step 3 — Install update-manager-core
Code:
sudo apt install update-manager-core
? If prompted:
  • Press Y → continue installation
Edit Upgrade Configuration
Code:
sudo nano /etc/update-manager/release-upgrades
Find:
Code:
Prompt=normal
Change to:
Code:
Prompt=lts
? Save:
  • CTRL + X
  • Press Y
  • Press ENTER
⚙️ Step 4 — Prepare System (dist-upgrade)
Code:
sudo apt dist-upgrade
? During this step:
  • System may install/remove dependencies
  • If prompted:
    • Press Y to continue
? Step 5 — Reboot System
Code:
sudo reboot
? Step 6 — Run Release Upgrade
Code:
sudo do-release-upgrade
? You will now see multiple interactive prompts:
1. Checking for new release
  • System checks availability of Ubuntu 24.04
2. Upgrade Summary Screen
  • Shows:
    • Packages to install
    • Packages to upgrade
    • Packages to remove
  • Prompt:
    • "Do you want to start the upgrade?"
    • Press Y
3. Download Packages
  • Shows download progress
  • No input required unless interrupted
4. Configuration File Prompts
You may see:
  • "A new version of config file is available"
Options:
  • Press Y → install new version
  • Press N → keep existing version
? Recommendation:
  • Use N if unsure (safer)
5. Service Restart Prompt
  • "Restart services during package upgrades without asking?"
Options:
  • Select Yes → recommended
6. Obsolete Packages Prompt
  • "Remove obsolete packages?"
Options:
  • Press Y → clean system
7. Kernel/GRUB Prompt (if appears)
  • Keep current selection unless you know otherwise
8. Final Prompt
  • "System upgrade is complete. Restart required"
  • Press Y
? Step 7 — Final Reboot
? System reboots automatically or asks:
  • Press Y to reboot
✅ Step 8 — Verify Upgrade
Code:
cat /etc/os-release
OR
Code:
lsb_release -a
? Confirm:
  • VERSION="24.04.4 LTS"
  • CODENAME=noble
? Optional Cleanup
Code:
sudo apt autoremove -y
⚠️ Important Notes
  • Always take backup before upgrade
  • Ensure stable internet connection
  • Do not interrupt upgrade
  • Recommended downtime window
  • Ensure at least 5–10 GB free disk space
? Troubleshooting
If upgrade not detected:
Code:
sudo do-release-upgrade -d
If upgrade fails midway:
Code:
sudo dpkg --configure -a
sudo apt -f install