Fail to install software during Debian installation on Virtualbox

For anyone still struggling with this, I finally managed to fix it (albeit on Parrot) by upping the disk size to 32 GB I tried 8GB, 10GB and 20GB but that was apparently not enough! I also tried messing around with many other settings including boot orders and RAM but that was not it either. Nor was it the ISO in my case but increasing the size to 32 GB worked. Hope this helps. Don

I was having the same problem on my Windows 10 workstation with Virtualbox failing.

To resolve this I increased the disk size from 8GB to 32GB.