Home / ubuntu / Questions / 1325204
In Process
cal
Asked: 2021-03-22 18:42:44 +0800 CST

Please explain the concept behind installing ubuntu as an .img file?

  • 772

I am trying to understand why the ubuntu server is setup as an .img file within my NAS "/Public” directory.

I created a VM on my NAS and installed ubuntu server within the VM. When I installed ubuntu server I installed it in my NAS "/Public” directory. FYI, ubuntu installed fine. I can access the file system via ssh and have set up my web server just fine.

However, I cannot figure out how to access the ubuntu file system using my laptop. Where is it hiding? I looked inside my NAS "/Public” directory. but all I see is a ubuntu_server.img.

I researched on the internet but, I cannot seem to understand the concept of why an .img file was created when I installed ubuntu.

  1. Could someone please explain the concept here?

  2. I would also like to access my ubuntu server files using my laptop.

Thank You.

networking

2 Answers

  1. VMs have disks that they present to a guest and those are either backed by a full real disk/partition or backed by an image file which in your case seems to be the case.

    There are various subtle details formats possible in your case most likely either raw format (as it is .img) or qcow2 (another common option). You can check that with qemu-img info <path-to-your-file>.

    Now to mount those (and please only do that when the guest it NOT running or the filesystem might go corrupt) you can do depending on that format:

    • 1

  2. To learn how to install ubuntu as a .img file? follow these steps;

    1. Download the desired .img file.
    2. Install the USB-image writer package.
    3. Open Applications -> Accessories -> Image Writer.
    4. Insert your flash media.
    5. Choose the downloaded file and flash device, and click "Write to Device"
    6. Remove your device when the operation is complete.
    • 0