Hi there,

I have one Ubuntu VM and now I feel that I've made a mistake allotting too little space to it. So, I created a second one and now I need to copy my files from the old to the new one. How can I do it?

Thanks, - A.

Just create more space if you want.

Can clone it between vm's too. I make a disk on the old vm that is larger. Boot to a clone iso image and clone it over. Remove the old disk from the vm and reboot.

What VM are you using ?
the steps will be very different for KVM vs VirtualBox

John W, it is Ubuntu under Oracle VirtualBox. It is in the heading of my OP.

Creating more space tried but did not work. I wish I could do it. In the VirtualBox many buttons are dimmed.

Another question: How can I dump my folders on an flash memory drive or something? Or any other external hard drive? I feel locked in my VM with no access to the outside world except the FireFox web browser and the Thunderbird mail. I can see them under the Devices tab in each VM but have no idea how to address them.

OK, I created a clone of the VM #1, the one I want to transfer the software (files) from. What is the next step?

I'm not sure how far you got, so these are the steps I would take.
Go to VBox Settings for the machine in question.
Create new Vhd & make it dynamically expandable.
Download clonezilla & attach iso to virtual cdrom
Make virtual cdrom first boot priority.
Clone to new vhd.
Go back to VBox settings & detach iso.
Move new vhd to first boot priority & check that it works.
If it does work detach original vhd.

EDDY1, thank you. I haven't got too far, so your prescription is very useful. Will try to do it tomorrow.
A.

You're welcome. Good luck!

Why not just make a new VM, boot up both of them, and rsync your files from one to the other? Why does it need to be any more complicated than this? You could finish it end-to-end in 20 minutes, including the OS installation.