I have installed Ubuntu OS and installed all the softwares and tools from my college Internet connection. Now, I am going back to my home where it might not always be easy to reinstall all the softwares and utilities once the system breaks down for some reason.
Is there a way to backup the entire live OS system on a pen drive etc. so that if in case my system crashes, I can just insert the pen drive and restore the system (means to be able to install the OS as well as the softwares that I currently have during the time of backup) without having to connect to the Internet and use software updater? The reason is that when Ubuntu is installed for the first time, updates of about 500 MB are installed and it is then that it becomes usable. Now i want to ignore this initial 500MB update in case I have to reinstall Ubuntu OS on my machine.
I also want the softwares that I am having at the time of backup to be there for me once I have reinstalled my OS without having to download them again.