[ubuntu-us-mi] Updating isos without downloading the whole image

[Robert Citek]

On Tue, Mar 23, 2010 at 5:21 PM, Daniel <prodigiouspenguin at gmail.com> wrote:
> Here's an article about using zsync to update an iso:
> http://ubuntu-tutorials.com/2009/10/29/use-zsync-to-update-existing-iso-images/
>
> It's for Karmic but I imagine you could just change the URLs to reflect
> Lucid.

Thanks.  Changed the URL and automated the process:

touch -r MD5SUMS MD5SUMS.ts
wget -Nc http://cdimage.ubuntu.com/daily-live/current/MD5SUMS
[ MD5SUMS -nt MD5SUMS.ts ] &&
grep -o lucid.*iso$ MD5SUMS | while read iso ; do
  zsync http://cdimage.ubuntu.com/daily-live/current/${iso}.zsync &
done
rm MD5SUMS.ts

Regards,
- Robert