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Why does the Ubuntu 21.04 Desktop ISO burned to DVD fail to start?

Ubuntu 10

Understanding the problem at hand is crucial to finding a solution. When it comes to the Ubuntu 21.04 Desktop ISO failing to start when burned to a DVD, there could be a variety of reasons. This article aims to provide an in-depth look at this issue and offer potential solutions.

Quick Answer

The Ubuntu 21.04 Desktop ISO may fail to start when burned to a DVD due to compatibility issues specific to the 21.04 release or a general DVD compatibility issue. It is recommended to try burning the Ubuntu 20.04 ISO to a DVD to determine if the problem is specific to the 21.04 release. Additionally, using Windows Explorer instead of Rufus to burn the DVD and analyzing error logs can help identify potential causes. If these solutions do not work, alternative installation methods such as using a USB stick or exploring other distributions may be considered.

Understanding the Issue

When trying to start the live session from a DVD burned with the Ubuntu 21.04 ISO, users have reported error messages such as “Failed to start Snap Daemon” and “Failed unmounting cdrom“. Interestingly, the same ISO image burned to a USB stick starts the live session without any problems.

It’s important to note that the ISO image itself is not corrupted, as it works fine when used with a USB stick. Also, other ISO images from different distributions have been successfully burned to DVDs using the same burner and disc.

Possible Causes and Solutions

Ubuntu 21.04 Specific Issue

One possible explanation is that there may be compatibility issues specific to the Ubuntu 21.04 ISO when burned to a DVD. To test this theory, you can burn the Ubuntu 20.04 ISO to a DVD and see if the issue persists. This will help determine if the problem is specific to the 21.04 release or if it’s a more general DVD compatibility issue.

Burning Method

The method used to burn the DVD can also affect the outcome. If you are using Windows to burn the DVD, try using Windows Explorer instead of Rufus. Some users have reported better success with burning DVDs using this method.

Error Output Analysis

To further investigate the issue, it would be helpful to have the complete output with all error messages. This can provide important information that may point to possible causes of the problem. You can access the error logs using the journalctl command in Linux. This command shows all system logs, and you can filter it by service using the -u option followed by the service name. For example:

journalctl -u snapd.service

This command will show all logs related to the Snap Daemon service.

Slow Startup Process

If you encounter a slow startup process with Ubuntu 20.04, it is not uncommon. However, as long as the live session eventually starts, it may not be a cause for concern.

Alternative Solutions

If none of the above solutions resolve the issue, it may be worth considering alternative installation methods such as using a USB stick or exploring other distributions that have been successfully burned to DVDs on your system.

For instance, burning the ISO to a USB stick seems to work without any issues. Therefore, if possible, using a USB stick to install Ubuntu may be a more reliable and faster alternative. You can use tools like Rufus or UNetbootin to create bootable USB sticks from ISO files.

Conclusion

While the specific cause of the Ubuntu 21.04 ISO failing to start when burned to a DVD is not clear, we hope that this article has provided you with some potential solutions to try. Remember, the process of troubleshooting is often a process of elimination. By trying different methods and solutions, you can hopefully identify the cause of the problem and find a solution that works for you.

Can I use a different burning software to burn the Ubuntu 21.04 ISO to a DVD?

Yes, you can use different burning software such as ImgBurn or Nero to burn the Ubuntu 21.04 ISO to a DVD.

Is it necessary to burn the Ubuntu 21.04 ISO to a DVD for installation?

No, it is not necessary. You can also create a bootable USB stick using tools like Rufus or UNetbootin for installation.

Can I use the same DVD burner and disc to successfully burn other ISO images?

Yes, if you have successfully burned other ISO images to DVDs using the same burner and disc, then the issue is likely specific to the Ubuntu 21.04 ISO.

How can I access the error logs using the `journalctl` command in Linux?

To access the error logs using the journalctl command, use the following command: journalctl -u [service-name]. Replace [service-name] with the name of the service you want to filter the logs for, such as snapd.service.

Are there alternative distributions that can be burned to DVDs without any issues?

Yes, there are other distributions that have been successfully burned to DVDs on various systems. Some examples include Ubuntu 20.04, Linux Mint, and Fedora.

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