I want to build a test virtual ubuntu machine. But I don't want to copy all the files to the test machine disk. But I can that de base disk is where the ubuntu software is installed. and the another disk is the disk that contains the data changes of the base disk. So you can easy recovery and create a new test machine.
I like to use virtual box on ubuntu.
Is there an option to do that with ubuntu/virtual box. Thanks you. (srry for bad english)
maybe you can use mount on root directory ('/') with two disks