[Ubuntu Chicago] upgrade failure ubuntu 14.04 LTS

[Deacon Solomon]

You guys might as well know you got a newbie on this list -- and it's
me.

My name is Deke Solomon. I live in Iowa -- in a tiny, unincorporated
farming community near Cedar Rapids. I'm an off-duty Marine (Vietnam
Era) now 65 years old -- a fact which, I guess, means I'm a senior
citizen as well.

Over the years I got an MA in magazine journalism from the University
of Missouri-Columbia (worked as a technical writer thereafter) and a BA
from Coe College, in Cedar Rapids. I USED to be a Windoze geek, having
used DOS and Windows (until DOS went away) and every version of Windows
since 3.1. I was EVEN a 'Microsoft Certified Expert' at one time (it's a
meaningless and worthless credential, but I didn't know that when I
forked over the money for the classes).

But Windoze 8 is the end for me. I built a new machine and used it to
tinker with various Linux distros a year ago. I very soon learned that
Ubuntu is the only civilized distro on the planet at this moment, so
I've installed that on a little Gateway box that I picked up for a song
at TigerDirect. I've been using installed Ubuntu LTS a year ago. I've
been using it for everything for more than a year now. I moved my
Windows 7 (the best Windows ever built) box off my desk and set it
aside. Now I do everything with Ubuntu.

I had small problems with the system, most of which I figured out for
myself. Now I've got a different problem and I don't know what to do. My
machine updates itself once a week. Never a problem with that until now.
Yesterday it found some updates it wants but tells me I can't install
them. The problem seems to be partition size (storage space). The error
message says:

NOT ENOUGH FREE DISK SPACE -- The upgrade needs a total of 63.0 M free
space on disk '/boot'. Please free at least an additional 21.9 M of disk
space on '/boot'. Empty your trash and remove temporary packages of
former installations using 'sudo apt-get clean'.

I opened a terminal window and ran 'sudo apt-get clean' (sans quotes),
then tried the upgrade again. It didn't work. I get the same
message every time I try it.

So: because sudo apt-get clean doesn't help, can somebody here steer me
through another way out of this? Free pint of delicious homemade Hummus
to the person who helps me out and comes to Iowa to get his/her hummus.

Thanks, fellers/gals. I know one of you can help.

Deacon