Ubuntu Setup Checklist for New Users

An Ubuntu setup checklist should create a known, updated, and recoverable baseline before you add repositories, run copied commands, or store important data. Record the exact system, install security updates, review official drivers, verify encryption and administrator access, configure a backup, and exercise the hardware.

Key Takeaways

• Record the Ubuntu release, desktop environment, kernel, hardware, disk layout, and installation choices.
• Install security updates from configured Ubuntu sources before adding unrelated software.
• Use Ubuntu's supported driver and firmware paths; do not install a package merely because a forum command names it.
• Preserve disk-encryption recovery information and keep daily work separate from unnecessary root access.
• Do not add random PPAs, run an unknown curl | sh, or edit /etc without a documented reason and rollback path.

If a specific component fails, use the Device and App Troubleshooting Guide to separate hardware, network, account, package, and application symptoms before making broad changes.

What should an Ubuntu setup checklist record after installation?

Write down the Ubuntu release and support status, desktop environment, kernel version, computer model, CPU, memory, graphics, network adapters, storage devices, partition layout, and whether Secure Boot or full-disk encryption was selected. Keep the installer image source and installation date with those notes.

Ubuntu's current desktop tutorial walks through hardware preparation, boot media, installation choices, disk setup, account creation, and post-install updates.［1］ Your record should describe what actually happened on this computer, especially any manual partitioning, dual boot, encryption, proprietary driver, or organization-specific choice.

For a dual-boot machine, also record the firmware boot mode and which boot entries start each operating system. Do not resize or reformat partitions during this baseline check; use the Windows and Linux dual-boot checklist before changing that boundary.

How should you install the first updates?

1. Connect to a trusted network and power source.
2. Open Software Updater, or use the documented APT update and upgrade workflow.
3. Read proposed removals, held packages, and repository errors before approving them.
4. Restart when the kernel, firmware, graphics stack, or system services require it.
5. Check again and record the resulting Ubuntu and kernel versions.

Ubuntu publishes security fixes through its security-update process and repositories.［2］ Install those updates before adding third-party sources so the initial state is easier to reason about. A repository error is not a reason to replace every mirror or paste a sequence of cleanup commands.

If APT reports a specific dependency or package-state failure, stop and diagnose that message. This article does not duplicate package repair instructions. The APT, DEB, Snap, Flatpak, and AppImage comparison helps identify which software system you are actually changing.

How do you review drivers and firmware safely?

Open the supported additional-drivers interface and review whether Ubuntu recommends a proprietary driver for the detected hardware. Prefer packages supplied by the configured Ubuntu archive or the hardware vendor's documented Linux process. Install one justified change at a time, restart, and test the affected device.

Use the system firmware update path when it supports the device. Keep stable power, do not interrupt firmware installation, and record the version. A newer-looking package from an unrelated PPA is not automatically a better driver.

After updates, test the graphics session, external display, brightness, Wi-Fi, Ethernet, Bluetooth, camera, microphone, speakers, headphones, suspend, resume, shutdown, charging, USB, and storage. Check real behavior rather than only whether a device name appears.

What account, sudo, and encryption checks matter?

Confirm which user was created during installation and whether it has the expected sudo access. Use the normal account for daily work and elevate only for a specific administrative task. Do not run a desktop session or downloaded application as root.

If disk encryption was enabled, document what is encrypted and the unlock or recovery information. Store recovery material somewhere independent of the encrypted computer. Test that the authorized owner understands the boot and recovery process before important data is added.

Do not loosen permissions as a universal fix. The Linux file permissions guide explains ownership and mode bits without treating chmod 777 as a default solution. Before changing a file under /etc, know which package or service owns it, make a scoped backup, and record how to undo the edit.

Which software sources should you trust?

Start with Ubuntu's configured repositories and the Software/App Center. For software outside them, verify the publisher's official instructions, repository signing setup, supported Ubuntu release, update path, and removal path.

Do not add a PPA simply because it appears in an old answer. A PPA can replace dependencies across the system and may stop supporting your release. Do not execute an unknown curl | sh; download and inspect the script, verify the publisher and transport, understand the privileges it requests, and prefer a signed package or documented repository when available.

For a standalone .deb, use the Ubuntu DEB installation guide and confirm the package architecture, publisher, dependencies, and update expectations. Avoid installing the same application through multiple packaging systems unless you have a deliberate reason.

How do you establish backup and recovery?

Identify documents, photos, keys, configuration, application data, and project files that cannot be recreated. Configure Ubuntu's backup application or another maintained solution with a destination that will still be available if the internal disk fails.

Run the first backup, inspect its status, then restore one harmless file to a temporary location and compare it with the original. Synchronization is not automatically a complete backup, and a snapshot stored only on the same disk does not cover disk failure.

Keep installation media, disk-encryption recovery information, account recovery, and backup instructions together but protected from unauthorized access. For an organization-owned computer, use its approved storage and incident process.

What final checks complete the baseline?

Restart twice and test login, lock and unlock, suspend and resume, networking, sound, display, camera, peripherals, time zone, keyboard layouts, language, printing, and any development toolchain you genuinely need. Review free disk space and note the normal idle behavior so later changes have a comparison point.

Check the update interface once more after the restart. Confirm the backup destination is not silently disconnected and that no hardware or security warning remains unresolved. Keep a short change log for new repositories, drivers, kernel parameters, and /etc edits.

Do not tune performance, replace the desktop, or modify boot settings solely because a generic checklist says to. A stable, documented default is a better starting point than many changes whose effects cannot be separated.

Summary

• Record the installed release, desktop, kernel, hardware, disk, boot, and encryption choices.
• Apply Ubuntu security updates before introducing third-party repositories.
• Use supported driver and firmware paths and test each affected component.
• Keep daily work out of root, preserve recovery information, and avoid blanket permission changes.
• Configure a backup, restore a test file, and record every added repository or system edit.

FAQ

What is the first thing to do after installing Ubuntu?

Record the installed system and disk choices, connect to trusted power and networking, then apply security updates from the configured Ubuntu sources.［1］［2］

Should I add PPAs for newer software?

Not by default. First check Ubuntu's repositories and the publisher's supported method. Add a PPA only when you understand its owner, release support, dependency impact, update path, and removal plan.

Is it safe to run curl | sh from an installation page?

Do not run an unknown pipeline. Verify the publisher, inspect the downloaded content, understand its privileges and persistence, and prefer a signed package or documented repository.

Do I need proprietary drivers on Ubuntu?

Only when the detected hardware and your use case require them. Review Ubuntu's supported recommendation, change one driver at a time, restart, and test.

Should I edit /etc to fix a setting?

Only with a specific documented reason. Identify the owning service, back up the exact file, make the smallest change, validate syntax, and keep a rollback instruction.

Is cloud synchronization a backup?

Not by itself. It may omit local data or synchronize deletion. Verify scope and restore a test file from an independent backup destination.

How often should I check for updates?

Keep automatic update notifications enabled and apply security updates promptly within your stability or organization policy. Recheck after a restart or repository change.

---

Disclaimer: This checklist provides general setup guidance. Menus, drivers, firmware, encryption, packaging, and support periods vary by Ubuntu release, desktop, hardware, and organization.

Sources:

1. Ubuntu Desktop documentation — Install Ubuntu Desktop — https://documentation.ubuntu.com/desktop/en/26.04/tutorial/install-ubuntu-desktop/
2. Ubuntu Security documentation — Security updates — https://documentation.ubuntu.com/security/security-updates/

Sources checked 27 August 2026.

---

Related Articles:

• Device and App Troubleshooting Guide
• Compare APT, DEB, Snap, Flatpak, and AppImage
• Install a DEB file on Ubuntu
• Understand Linux file permissions
• Review the Windows and Linux dual-boot checklist