The idrac and LifeCycle Controller are 2 halves of the same coin. ideally you want to update them both to the latest version on the support site. Because you are running Ubuntu, that might be a little more difficult if the Dell Update Packages (DUPs) dont run correctly under that OS. I have not tried it on that one. there are a few ways to tackle this:
1. if you can download the idrac and LC dups and run them from within the OS, that would be easiest
2. you could try pulling power from the system for 30 seconds to reset the LC, plug power back in, then wait at least 1 minute before actually powering on the system. It is crucial that you wait so the idrac can complete its bootup while the system is off. if you have the small lcd on the front of the system, once it responds to buttons, power on the system.
3. if step 2 clears the message and you can F10 into the LC, use the Platform Update function to update the LC.
4. its possible that you may have an old enough idrac and LC that you MUST use an OS based update package, and if that is the case, and step 1 doesnt work for you, then you will need to do one of two things.
a. you can use the omsa live disc to boot from, then run the idrac and lc dups from a usb key.
linux.dell.com/.../om71-firmware-live
b. install and create a repository with repository manager 1.5, then create a bootable update disc for your model system.
there is a video at this location that can show you how to create a bootable iso for your system.
en.community.dell.com/.../1767.dell-repository-manager.aspx
there is a 3rd option called the systems build and update utility, which you can boot to, but then you will need the Dell Server Update Utility 7.1.1 or later for the update packages. This iso is 5+GB and requires a Dual Layer disc.