parallels ubuntu 18 cd rom not found

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17-10-2024

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Troubleshooting "CD-ROM Not Found" Error in Parallels with Ubuntu 18

If you’re using Parallels Desktop to run Ubuntu 18 in a virtual machine (VM), you may encounter a frustrating issue where the system reports "CD-ROM not found." This error typically arises during installation or when the operating system tries to access the installation medium that was initially used to set up Ubuntu. Below, we will explore the causes of this error and how to resolve it effectively.

Understanding the Error

When you install Ubuntu from a CD or ISO file, the system expects to find the installation media (the CD-ROM) to retrieve necessary files and packages. If the VM configuration does not correctly link to the installation media, you may see the "CD-ROM not found" message, especially when the system attempts to perform operations that require package updates or installation.

Common Causes

1. Incorrect Boot Media Settings: The virtual machine might not be configured to boot from the right source.

2. Missing or Incorrect Entries in /etc/fstab: The file system table might reference a CD-ROM that is no longer accessible.

3. ISO File Not Mounted: If you used an ISO file for installation, it may not be mounted properly.

4. Parallels Settings: Parallels might not be set up to provide the virtual CD/DVD drive correctly to the VM.

Steps to Resolve the "CD-ROM Not Found" Issue

1. Check Boot Configuration:

   • Open your Parallels Desktop application.
   • Select your Ubuntu VM, then navigate to Configuration.
   • Under the Hardware tab, ensure that the CD/DVD section is set to "Connected" and is pointing to the correct ISO file or virtual disk image.

2. Edit /etc/fstab:

   • Boot into Ubuntu and open a terminal.
   • Type sudo nano /etc/fstab to edit the file.
   • Look for any lines that reference /media/cdrom or similar paths. Comment out those lines by adding a # at the beginning of the line. Save the changes (Ctrl + O, Enter, Ctrl + X).
   • Reboot the system.

3. Mounting the ISO:

   • If you used an ISO for installation, ensure it’s properly mounted:
   • In your terminal, run:

     sudo mkdir /media/cdrom
     sudo mount -o loop /path/to/your.iso /media/cdrom
     

   • Replace /path/to/your.iso with the correct path to your ISO file.

4. Updating Parallels Tools:

   • Ensure that Parallels Tools are up to date. Outdated tools may cause issues with disk access.
   • To reinstall, go to the Parallels menu bar while your VM is running, select Actions > Install Parallels Tools, and follow the prompts.

5. Restart the Virtual Machine:

   • After making the above changes, restart your VM to see if the issue persists.

Conclusion

Encountering the "CD-ROM not found" error in Parallels while using Ubuntu 18 can be frustrating, but it is typically solvable with a few adjustments to the virtual machine's settings and system configurations. By following the outlined steps, you should be able to resolve the issue and enjoy a smooth experience running Ubuntu on Parallels. If problems continue after these troubleshooting steps, consider seeking additional support from Parallels or Ubuntu forums, as other users may have experienced and resolved similar issues.