One of the first things you will want to do after you root your Atrix 4G is to make a backup copy of your rooted ROM.
If you are going to install new ROMs or overclocking kernels, you will want to make sure you have a restore point, sorta like Windows 7 system restoration feature. This can be done easily using ClockworkMod Recovery, which allows you to completely backup/restore your current ROM, whatever it’s on.
This backup method will backup all your settings, contacts, apps, ROM, and the kernel. It won’t back up contents of your internal storage of