I am a student and a novice developer. I tried virtual box for the first time and I installed ubuntu guest os using vagrant box. I don't know why, but when I run a virtual machine, I only get a terminal screen. I want to copy the text in my window and paste it into a virtual machine. Is there any way? I also got this error "Could not mount the media/drive 'C:\Program Files\Oracle\VirtualBox\VBoxGuestAdditions.iso' (VERR_PDM_MEDIA_LOCKED)." in expanding the guest.
please help!