Re: Same hashfiles for files that should be different from each other?

[Andy Simpkins <rattusrattus@debian.org>]

On 30/03/2019 10:16, Andy Simpkins wrote:
> On 30/03/2019 09:56, Thomas Schmitt wrote:
> > Hi,
> >
> > i wrote:
> > > > The same checksum duplicity can be seen with
> > > >    5849124a0e25d1318a880e98b9a8123f 
> > > > debian-live-9.8.0-amd64-cinnamon.contents
> > > >    5849124a0e25d1318a880e98b9a8123f 
> > > > debian-live-9.8.0-amd64-gnome.contents
> > Andy Simpkins <rattusrattus@debian.org> wrote:
> > > That is exactly what Kuijpers has just pointed out.
> > Evert Kuijpers pointed to "lxde" and "mate" on "i386" and "amd64".
> > My run of program "sort" reveiled that "cinnamon" and "gnome" form a 
> > pair,
> > too (at least on "amd64").
> >
> >
> > > the issue could be in one of several places. [...]
> > > (2) we are building the content of the ISOs
> > > correctly, but incorrectly reporting the manifest
> > This can be ruled out.
> > I downloaded debian-live-9.8.0-amd64-lxde.iso and
> > debian-live-9.8.0-amd64-mate.iso. Mounted them at /mnt/iso and compared
> > the outputs of
> >    find /mnt/iso | sed -e 's/^\/mnt\/iso//' | sort
> >
> > They are identical.
> >
> > The results of "find" differ from the identical .content files only by
> > the paths "/isolinux/boot.cat", for which there is a plausible 
> > explanation
> > in the ISO production process.
> >
> >
> > > (3) we are reporting the
> > > manifest correctly and we are reporting incorrect checksums
> > This can be ruled out.
> > "md5sum" confirms the MD5s. "diff" confirms that the .content files have
> > identical content.
> >
> >
> > Have a nice day :)
> >
> > Thomas
> >
> >
> >
> > ---
> > This email has been checked for viruses by AVG.
> > https://www.avg.com
>
>
> Hi Thomas
>
> Ack.
>
>
> So it looks like the contents are identical.  This isn't entirely 
> surprising - the packages are after all should be the same.  I am 
> guessing at this point (and still looking) but there manifests between 
> the different desktop environments (after the desktop environment 
> itself) will be very similar, and only differ from one another because 
> of the size of the desktop environment itself (i.e. a smaller 
> environment takes up less space so there is more room for additional 
> packages, a larger desktop has less space available so the manifest of 
> packages is therefore smaller).
>
> Sledge would be able to confirm this with authority, but I believe he 
> is away at the moment.  I will continue digging to try and confirm 
> this hypothesis
>
>
> /Andy
OK so whilst the .contents files are the same for 
debian-live-9.8.0-amd64-cinnamon.contents and 
debian-live-9.8.0-amd64-gnome.contents  their corresponding .packages 
files are not the same, thus indicating (to me - perhaps mistakenly) 
that there is a problem and that this is NOT correct behaviour.


still digging


/Andy