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Incorrect boot order in the VM settingsThis can occur if you are looking to boot from the virtual disk where the OS is already installed, but the virtual optical drive is selected as a boot device and the virtual hard disk is not selected as a boot disk in the boot order list.Another case when you can get the No bootable medium found in VirtualBox fatal error is when a virtual optical drive with a higher boot order contains the unbootable media. Otherwise, the virtual CD/DVD drive of the VM will be empty after ejecting from the guest OS (operating system) and further VM reboot, and you can get the fatal error in VirtualBox: No bootable medium found! Hence, if you reboot the VM with the ticked Live CD/DVD checkbox, a VM will boot from the same ISO disk image. When this option is enabled, a virtual CD/DVD disk image (ISO) is not removed from the virtual CD/DVD drive when the eject command is sent from the guest operating system. What is the purpose of the Live CD/DVD checkbox in the VirtualBox VM storage settings?If you use a VM to boot from a live CD/DVD each time, tick the Live CD/DVD checkbox.
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In this case, it is necessary to choose a virtual optical disk ISO file, or select the host optical drive with a physical optical CD or DVD disc inserted.When the correct boot disk image is inserted, the storage settings window looks as follows.Inserting an ISO image to the virtual DVD drive of a VM was also mentioned in the previous blog posts: How to install Ubuntu on VirtualBox. Check the media you have inserted into the optical drive attached to the VM. Burn another bootable CD/DVD disc or create a bootable ISO disk image correctly and try to boot again. The same situation may happen when an ISO image is created incorrectly without creating a disk boot area.Possible solutions. If a physical CD/DVD disc was burned as a data disc without using the bootable disc option, you won’t be able to boot your machine by using this disc. A bootable disk has been created incorrectly or is not bootableIf you want to boot from a CD/DVD disc or an ISO image, but find that the disc has been created incorrectly, you may get the No bootable medium found in VirtualBox error. The No bootable medium found in VirtualBox error is common when creating a new VM.Reasons Why You Can Get the No Bootable Medium Found in VirtualBox ErrorLet’s consider the most popular reasons why you can get the No bootable medium found in VirtualBox error and review the algorithms of actions that can help you resolve this issue. In today’s blog post, we will review all possible cases when this error can occur, as well as methods for resolving this issue.
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