saving/restoring buffers not working in vim

Question

I'm using vim 7.2 in iterm2 (Snow Leopard). I'd like to save/restore buffers between vim sessions automatically, and added this line to my vimrc:

set viminfo+=%

Now, I open a couple of files and quit vim. I expect them to be there, but I get the home screen. This is the output of :set viminfo

viminfo='100,<50,s10,h,%

Am I missing any step here?

Answer 1

What you need is reading :help mksession.

And the Vim Wiki(a) has some tips to use it automatically.