How to Upgrade Ubuntu 16.04 to Ubuntu 18.04

I have used Ubuntu 16.04 LTS nearly 2 years. It worked well. But as a normal human being I got an idea to upgrade Ubuntu 16.04 LTS to Ubuntu 18.04 LTS. My laptop is an old one. That is Compaq Presario CQ62 laptop with core i-3 processor. Therefore first of all I checked the minimum hardware requirements for Ubuntu 18.04 LTS.  According to Ubuntu site and Google, minimum requirements are follows.

    • 2 GHz Dual Core Processor
    • 2 GB RAM (System Memory)
    • Minimum 25 GB Hard Drive space
    • VGA Capable of 1024 x 768 screen resolution
    • CD/DVD Drive or USB port for installation

My machine is up to minimum system requirements. But my CD/DVD drive is not working. But I have 3 working USB ports. Therefore I decided to upgrade my Ubuntu 16.04 to 18.04.

My machine is up to minimum system requirements. But my CD/DVD drive is not working. But I have 3 working USB ports. Therefore I decided to upgrade my Ubuntu 16.04 to 18.04.

Steps :

• First run the sudo apt update command for update the Ubuntu 16.04 system update

• Then run the sudo apt upgrade command for Ubuntu 16.04 system upgrade.

• Then run the sudo apt dist-upgrade command.

 

• Then run the sudo apt autoremove command.

 

• Select Y, when following question appears

• So, finally run the following commands for upgrade Ubuntu 16.04 to Ubuntu 18.04 operating system.

After install upgrades machine restarts and Ubuntu 18.04 desktop appears.