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How to Download Live CD Ubuntu and Use It as a Portable Operating System


How to Download and Use a Live CD Ubuntu




Ubuntu is a popular and free operating system based on Linux that offers a user-friendly and secure desktop experience. You can try Ubuntu without installing it on your computer by using a live CD or USB drive. In this article, we will explain what a live CD Ubuntu is, how to download it, and how to use it.




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What is a Live CD Ubuntu?




Definition and features of a live CD Ubuntu




A live CD Ubuntu is a bootable media that contains an operating system and some applications that you can run without affecting your existing system. It allows you to test Ubuntu before making any changes to your machine or install it permanently later. The standard Ubuntu desktop edition can be used as a live CD as well as an installer.


A live CD Ubuntu has several features, such as:



  • It works on most computers that support booting from CD or USB drive.



  • It detects and configures your hardware automatically.



  • It provides access to the internet and local network.



  • It offers a full-featured desktop environment with office, web, multimedia, and other applications.



  • It supports multiple languages and keyboard layouts.



  • It allows you to create and save files on a persistent storage device or cloud service.



  • It lets you install additional software from the Ubuntu software center or other sources.



Advantages and disadvantages of using a live CD Ubuntu




Using a live CD Ubuntu has some advantages and disadvantages, depending on your needs and preferences. Here are some of them:


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Advantages


Disadvantages


  • You can try Ubuntu without modifying your existing system.



  • You can use it on any supported machine without installing it.



  • You can use it as a secure desktop for online banking and other sensitive tasks.



  • You can use it as a rescue tool to fix problems on your system or recover data.



  • You can use it as a demonstration tool to show off Ubuntu to others.



  • It is slower than an installed system because it runs from the CD or USB drive.



  • It may not work with some hardware or software that require special drivers or configuration.



  • It may not have all the features or applications that you need or want.



  • It may not be compatible with some security or encryption settings on your system.



  • It may not be updated with the latest patches or bug fixes.



How to Download a Live CD Ubuntu?




Choosing the right edition and version of Ubuntu




The first step to download a live CD Ubuntu is to choose the right edition and version of Ubuntu that suits your needs. There are three main editions of Ubuntu: Desktop, Server, and Core. For this article, we will focus on the Desktop edition, which is designed for personal computers and laptops.


The Desktop edition of Ubuntu comes in different versions, depending on the release cycle and support duration. There are two types of versions: LTS (long-term support) and non-LTS (standard). LTS versions are released every two years and receive five years of security and maintenance updates. Non-LTS versions are released every six months and receive nine months of support and updates. LTS versions are recommended for most users, especially those who value stability and reliability. Non-LTS versions are suitable for those who want to try the latest features and improvements.


The current LTS version of Ubuntu Desktop is 20.04, codenamed Focal Fossa, which was released in April 2020. The current non-LTS version of Ubuntu Desktop is 21.04, codenamed Hirsute Hippo, which was released in April 2021. You can choose either version depending on your preference, but keep in mind that the non-LTS version will require more frequent upgrades to stay updated.


Downloading the ISO image file from the official website




The next step to download a live CD Ubuntu is to download the ISO image file from the official website. An ISO image file is a single file that contains the entire operating system and applications that you can burn to a CD or USB drive. You can download the ISO image file from the following link: [Ubuntu Desktop Download].


On the website, you will see two options: Ubuntu Desktop 20.04 LTS and Ubuntu Desktop 21.04. Click on the option that matches the version that you want to download. You will then see a page with some information about the system requirements, features, and donation options. You can choose to donate some money to support the development of Ubuntu or skip this step by clicking on "Not now, take me to the download". You will then see a button that says "Download". Click on it and save the ISO image file to your computer.


Verifying the integrity of the downloaded file




The last step to download a live CD Ubuntu is to verify the integrity of the downloaded file. This is an optional but recommended step that ensures that the file you downloaded is not corrupted or tampered with. To verify the integrity of the file, you need to compare its checksum with the one provided by the website. A checksum is a unique code that identifies a file based on its content.


To verify the checksum of the file, you need to use a tool that can calculate and compare checksums. There are different tools available for different operating systems, such as md5sum for Linux, CertUtil for Windows, and shasum for Mac OS X. You can find more information about how to use these tools on this page: [HowToMD5SUM].


Once you have calculated the checksum of your downloaded file, you need to compare it with the one provided by the website. You can find the checksums for different versions of Ubuntu Desktop on this page: [Ubuntu Hashes]. If the checksums match, it means that your file is valid and ready to use. If they don't match, it means that your file is corrupted or altered and you need to download it again.


How to Use a Live CD Ubuntu?




Creating a bootable CD or USB drive from the ISO image file




Now that you have downloaded and verified your live CD Ubuntu file, you need to create a bootable CD or USB drive from it. A bootable media is a device that can start your computer and load an operating system without using your hard drive. You can use either a blank CD or a USB drive with at least 4 GB of space.


To create a bootable CD or USB drive from your ISO image file, you need to use a tool that can burn or write the file to your media. There are di


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