Introduction
Ubuntu is a powerful, user-friendly Linux distribution. But like any operating system, things can go wrong. Whether it’s Wi-Fi not connecting, a black screen after install, or system updates refusing to run — don’t worry. This guide helps you fix common Ubuntu problems with simple steps.
Related: How to Install Ubuntu
1. Wi-Fi Not Working After Install
Symptoms:
- No Wi-Fi adapter found
- Can’t connect to a network
Fixes:
- Plug in an Ethernet cable or use another internet source.
- Run these commands:
bash
sudo apt update
sudo apt install bcmwl-kernel-source
- Reboot your system.
Tip: You may need to enable restricted drivers via Software & Updates > Additional Drivers.
Also Read: Installing Software on Ubuntu
2. Black Screen After Installation
Symptoms:
- Ubuntu boots to a blank screen.
- Stuck after GRUB menu.
Fixes:
- At GRUB menu, press e and add nomodeset after quiet splash.
- Press F10 to boot.
- Once in Ubuntu, update drivers:
bash
sudo ubuntu-drivers autoinstall
Make this change permanent by editing /etc/default/grub and running:
bash
sudo update-grub
3. Update/Upgrade Not Working
Common Errors:
- “Failed to fetch…”
- “Could not get lock /var/lib/dpkg/lock”
Fixes:
- Make sure no other updates are running.
bash
sudo rm /var/lib/apt/lists/lock
sudo dpkg –configure -a
sudo apt update && sudo apt upgrade
If it still fails, try:
bash
sudo apt clean
sudo apt autoclean
sudo apt autoremove
Explore More: Ubuntu Terminal Basics
4. File or Folder Permission Issues
Symptoms:
- “Permission denied” when accessing files
- Can’t open/edit system files
Fixes:
- Check ownership:
bash
ls -l filename
- Change ownership:
bash
sudo chown username:username filename
- To run commands needing root:
bash
sudo command
For multiple files:
bash
sudo chmod -R 755 foldername
Bonus Tips
- Always backup before making system changes.
- Use Live USB to recover from major failures.
- Bookmark the Ubuntu Forums and Ask Ubuntu for community support.
Conclusion
Linux issues can seem scary at first, but most Ubuntu problems are easy to fix once you understand the cause. This guide should help you handle the most common problems with ease.
