Question: I have several Ubuntu servers running on my Windows 2019 Hyper-V however I lost the ISO image. I downloaded `ubuntu-20.04.2-live-server-amd64.iso` and when I create a new VM it bombs every time:

[![enter image description here](https://i.stack.imgur.com/wRhUU.png)](https://i.stack.imgur.com/wRhUU.png)

What am I doing wrong?

I have:

* Windows 2019 Server w/24 Cores, 256 GB of RAM, and 4 TB of usable space.
* Generation 2, Secure Boot unchecked
* 32 GB of RAM
* 12 Virtual Processors
* 1 TB of hard disk space (tried 25 GB, 125 GB, and 512 GB)
* SCSI Controller
* All but Guest Services checked.

I must have forgotten a step. Any ideas?

Answer: 
Use the `numbered` when using `mv`

```
numbered, t
make numbered backups

```

[man mv](https://linux.die.net/man/1/mv)

`mv --backup=TYPE` with type being 1 of these:

* none, off never make backups (even if --backup is given)
* numbered, t make numbered backups
* existing, nil numbered if numbered backups exist, simple otherwise
* simple, never always make simple backups
I would suggest using Thunar package manager, to rename and relocate files in bulk. You can install it with this command: `sudo apt-get install -y thunar`