Why is /var so big?

[Rob Rosenthal]

> Execute as root: mkdir /var/cache/yum
> Btw. you broke it yourself by deleting all the content below /var/cache/
> (previous thread).
>
> Alexander

Alexander,

Oh, I know.  I absolutely did it myself in my haste to free up space.  I tried (as root) the "mkdir /var/cache/yum" and got the following error message: "mkdir: cannot create directory `/var/cache/yum': No such file or directory"  I'm guessing it may be because I'm running FC2 and not FC3, which has a new and different yum?  Do you think I should just reinstall yum?

BTW, I really do appreciate your help...