Had this pop-up today after I upgraded VirtualBox (and post kernel patch reboot which is more likely the culprit). I keep all my VM’s on a remote NAS and it seemed like path references had been modified slightly.
Some digging online didn’t really locate to much so I started poking around myself, solution ended up being:
- Using File > Virtual Media Manager – Delete reference to the failed hard drive located on your NAS.
- In the settings for your VM remove the failed disk
- Click on sata and the little ‘Add HDD’ icon to the right – you can now select your remote disk image
- Restart – all is well.
Hope that helps!