backup for my upgraded ubuntu 13.04 using dell recovery

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http://www.linuxquestions.org – i recently got a dell inspiron n5520 with ubuntu 11.10. Being a noob with ubuntu os i decided to search sites and then upgrade to the latest version one version at a time. Unfortunately two days back while upgrading to ubuntu 12.10 i encountered errors and the system crashed. However i restored back to 11.10 using dell recovery.i upgraded from scratch to 12.10 and tonight i want to get to 13.04. Once i have done that id like to know how to backup 13.04 with dell recovery. So if my system crashes again i dont have to fall back to 11.10. Someone please guide me. (HowTos)