cimenta wrote:
How's it about space? The new image will consume only used space or will be equal to the size of my linode ?
Upside: it's quick and easy. Downside: the duplicate is the same size as the original image (they are just files on the host system).
To use less space, you can use tar with compression to make a backup to a separate drive image (caveats about live file systems still apply).
I suggest that you use the quick and easy duplication system while you are experimenting, then switch to a more robust backup strategy when you are happy with your Linode. Once you have a 'real' backup strategy in place, you can delete the backup disk image and increase the size of your Linode's operational image(s).