update manager's "problem"

if you're using ubuntu linux,

and if you happened to be just like me, like to "update" on a regular and frequent basis,

and if you happened to encounter a similar problem,

i guess, this can be a solution...

this is my problem,

of course, you can use the command line update, ie. sudo apt-get bla bla bla...

but then, i, as a not techy person, will like to use "update manager" from the built-in...

anyway,

sometimes, i notice, after i've performed an update, the update manager doesn't show the "updates", and yet, each time i check for any available updates, a long list will come out and the "last update" was always few days ago, or many days many days ago...

so, something wrong right?

lately i encountered such problem more frequently,

so, i kept this note,

$ sudo apt-get clean
$ cd /var/lib/apt
$ sudo mv lists lists.old
$ sudo rm -rf lists.old
$ sudo mkdir -p lists/partial
$ sudo apt-get clean
$ sudo apt-get update

yes... run these command line, (don't ask me why, i kinda know a bit, but don't know a lot more bit, basically i just copied it off some forums...)

and... that'll do the trick...

ok, a not for myself, and for you!