periodic upgrade

[Thufir]

On Wed, 15 Aug 2012 00:20:19 -0700, Thufir wrote:


> https://help.ubuntu.com/12.04/serverguide/automatic-updates.html
> 
> doesn't really make it clear, at least to me, how to set apt to simply
> download, and then how to know when it's done, and then how actually
> upgrade from what's been downloaded.


>From aptitude man page:

       -d, --download-only
           Download packages to the package cache as necessary, but do 
not install or
           remove anything. By default, the package cache is stored in
           /var/cache/apt/archives.

           This corresponds to the configuration option 
Aptitude::CmdLine::Download-Only.



however, what happens when --download-only is interrupted?  Does it need 
to start over, or does it realize which ones were already downloaded?  
There are lotsa packages.



thanks,

Thufir