

Step 3: Start your virtual machine and you should be able to boot normally from the mounted iso. Step 2: Once the settings menu is open, follow the steps access storage > Controller:IDE > Choose the bootable iso and click ok. Step 1: Right-click on the virtual machine that isn’t in a bootable state and click on settings. If you are not sure which of the 2 reasons apply to you, I can show you a solution that covers both, and finally stop receiving the error message. VirtualBox works without any problems when a SATA storage device points to a virtual hard drive, but this is not the case for a bootable iso. Another issue can appear if you accidentally mount the bootable iso to a SATA storage device controller instead of IDE.

When you create a virtual machine for the first time, you need to mount a bootable iso like Ubuntu.

There are two main reasons behind this issue: What causes this “Could not read from the boot medium” error? This problem has to do purely with VirtualBox and can be experienced on any host operating system, be it Windows, Mac OS or Linux.
