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Re: Best practices for updating systems over extremely slow links

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On 10/28/2016 4:14 AM, Karl E. Jorgensen wrote:
> On Thu, Oct 27, 2016 at 03:45:21PM +0000, rbraun204 . wrote:
>> I have a couple of debian boxes in very remote areas that are connected back to
>> our wan via a 56kbps satellite link.  Most of the time we have a constant
>> stream of data coming/going to that machine so the link is saturated quite a
>> bit.
> [snip]
>
> Normally, I'd suggest looking into running a private mirror and
> rsyncing it, but with only one machine at each location, that's
> overkill.
>
> I think you may want to look into apt-zip: This will decouple the
> download from apt, allowing you to get the data xferred by whatever
> method works (rsync?), and picking up the xferred file on the remote
> location with apt...
>
> Unfortunately, apt-zip has been discontinued - last appears in wheezy,
> but it may still work or be made to work?  It seems aimed at your
> exact use case...
>
> Failing that I can imagine other (hand-crafted) solutions with these
> components:
>
> - make sure /etc/sources.list (and /etc/sources.list.d) are identical
>
> - rsync /var/lib/apt/* across
>
> - on the remote end: run:
>
>      apt-get upgrade --print-uris  # or similar
>
> - grab the URLs
>
> - download the *.debs and rsync them into /var/cache/apt/archives/
>
> - on the remote end:
>
>      apt-get upgrade
>
> This is entirely off the top of my head, but with a bit more thought
> and scripting, it _should_ work...
>
> Hope this helps
> --
> Karl

Would apt-offline be appropriate? It is a maintained Debian package.

offline APT package manager
    https://packages.debian.org/jessie/apt-offline
Welcome to Offline APT Package Manager project!
    http://apt-offline.alioth.debian.org/
Offline Package Management for APT
 
https://debian-administration.org/article/648/Offline_Package_Management_for_APT
Using APT Offline
    https://www.debian.org/doc/manuals/apt-offline/index.en.html

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Best practices for updating systems over extremely slow links "rbraun204 ." <rbraun204@gmail.com> - 2016-10-27 18:10 +0200
  Re: Best practices for updating systems over extremely slow links emetib <chadbrabec@gmail.com> - 2016-10-28 04:00 +0200
  Re: Best practices for updating systems over extremely slow links "Karl E. Jorgensen" <karl@jorgensen.org.uk> - 2016-10-28 11:20 +0200
    Re: Best practices for updating systems over extremely slow links Richard Owlett <rowlett@cloud85.net> - 2016-10-28 14:10 +0200

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