Ubuntu iso11/30/2023 ![]() If you used the "USB Drive" install mode: After rebooting, boot from the USB drive. If your USB drive doesn't show up, reformat it as FAT32. Select an ISO file or a distribution to download, select a target drive (USB Drive or Hard Disk), then reboot once done. ![]() It loads distributions either by downloading a ISO (CD image) files for you, or by using an ISO file you've already downloaded. UNetbootin can create a bootable Live USB drive You can either let UNetbootin download one of the many distributions supported out-of-the-box for you, or supply your own Linux. You need to visit Previous (download Ubuntu Desktop ISO) and Next (create Ubuntu bootable USB) chapters to understand the topic in entirety.UNetbootin allows you to create bootable Live USB drives for Ubuntu and other Linux distributions without burning a CD. ![]() This article is a part of Ubuntu Desktop – The Complete Installation Guide series. If verification fails, re-download the ISO file from an authentic source. You can proceed to create Ubuntu bootable media ( USB or DVD) with the ISO file upon successful verification. If the result is ‘True’, the integrity and authenticity of the Ubuntu ISO file is verified to be maintained while downloading from the source.Įlse if, the result is False, you should download the ISO file again preferably on a reliable computer and Network. If both values will match the result will be ‘True’ else the result will be ‘False’. Now use the ‘=’ (equal to) operator to compare the value of both cells. Remove any extra blank space if visible to make strings equal length. Ensure that both sums are in same format and of same length. In one of the cells (Let’s say E5) paste the KeyGenerated in Powershell and in another cell (Let’s say E7) paste the KeyProvided on Ubuntu download page. Switch to Excel / Calc sheet and paste the keys. the one generated in Powershell and second that is provided on Ubuntu official website.Ĭopy SHA256 sum keys viz. ![]() Open a sheet in Excel or Calc, label the cells to identify each SHA key viz. It is a simple way to compare the key however, time consuming.Īnother efficient and quick method is to use a sheet ( Microsoft Excel or Libre Office Calc) to compare the SHA256 sum. Now visually compare this KeyProvided with KeyGenerated in previous section character by character. Go back to Ubuntu download page and copy SHA256 sum provided by Ubuntu official site in the echo command.įor e.g. The SHA256 sum would be a long string with arbitrary characters e.g. It may take some time as the file size will be large ~2.52 GB. The above commands will generate the SHA256 Sum of Ubuntu Desktop ISO file. Run the CertUtil -hashfile SHA256 command as shown in below image. Open Windows PowerShell and change the directory to Downloads folder (or location where you have kept Ubuntu Desktop ISO file). Generate and match SHA256 checksum on Windows If the terminal produces OK in output with Ubuntu ISO file then the ISO file downloaded is verified for integrity and authenticity.ī. Paste the command in Terminal and hit enter: Open the Terminal by Right Clicking on the ISO file download location and select ‘Open in Terminal’ or open it from applications menu and change the present working directory to Download Directory where Ubuntu ISO file is downloaded.Ĭopy the echo command (e.g. Let us see the method of generating SHA256 checksum on windows and Linux PC and matching them in following steps: A. Now you need to generate the SHA256 checksum of the downloaded ISO file with the one mentioned in the checksum file. So, now you have the ISO file and its SHA256 checksum. The SHA256 sum of the ISO file provided by Ubuntu will be displayed. Once download of Ubuntu ISO file is complete follow the below steps to check integrity and authenticity of Ubuntu ISO file.Īfter Ubuntu Desktop ISO file download is complete, click on the “verify your download” link on the thank you for download page. Whenever you download an ISO file of Ubuntu operating system, you should first ensure that it has not been tampered and is same as provided by Ubuntu before using it for creating bootable media. This post describes the process of verifying Ubuntu Operating System ISO file for authenticity and integrity.
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