--- On Tue, 21/4/09, Jonathan Dieter <jdieter(a)gmail.com> wrote:
From: Jonathan Dieter <jdieter(a)gmail.com>
Subject: Re: Can we have a Delta-DVD release
To: "Development discussions related to Fedora"
<fedora-devel-list(a)redhat.com>
Date: Tuesday, 21 April, 2009, 7:56 AM
On Mon, 2009-04-20 at 23:40 -0400,
Warren Togami wrote:
> On 04/20/2009 10:15 PM, James Gallagher wrote:
> >
> > After all, I think some of the large language
packages would have a
> > pretty small delta between 6 month release
cycles.
> >
>
> Note that nearly every package is rebuilt between
releases.
>
> For this to make any difference at all, it would have
to delta not only
> the bits of the RPM packages, but delta the
uncompressed RPMS against
> each other.
>
> Does any tool do this today across an entire ISO
image?
There is makedeltaiso in the deltarpm package. I
haven't tested it much
as I don't use the DVD iso images to install.
Jonathan
So there is! Doesn't work on F9 -> F10 but on F10 -> F11 beta DVD (x86_64)
I get a delta iso image of 2.2GB, about 53% less than the full iso. Hmm, not as good as I
was expecting, probably not worth making a fuss about unless we could get <1GB.
Are there any plans to optimise this tool or use it for future releases?
James