periodic upgrade

[Colin Law]

On 15 August 2012 09:49, Thufir <hawat.thufir at gmail.com> wrote:
> 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.

It will not re-download packages that have already been downloaded.
You can safely interrupt a download.

Colin