Re: verifying iso images downloaded by jigdo during installation

I used prozilla to download FC9, it works the same way as jigdo and had no
problem with DVD and I checked using sha1sum.
Visit one of the mirror sites (
http://mirrors.fedoraproject.org/publiclist/Fedora/9/) or in particular, one
of my favorites, switch mirror in Switzerland (
http://mirror.switch.ch/ftp/mirror/fedora/linux/releases/9/Fedora/i386/iso/)
and download the SHA1SUM file.
The above example URL is for i386, you can get x64 at the same site.
Sivaraman.

2008/5/28 Mohammed El-Afifi <mohammed_elafifi@xxxxxxxxx>:

The problem is that there's no single site the iso is downloaded from.
Jigdo works by downloading single package files from several sites(mirrors)
and then accumulating them into a single iso file. I downloaded the jigdo
file(the file containing information about the iso images) form the
fedoraunity website, however there were no SHA1SUM for these ISO images at
that site.
I posted a request on the fedoraunity site so that they may publish the
SHA1SUM for these images. If anyone knows where such SHA1SUM files for these
images may exist, it would be greatly helpful.
If anyone also has downloaded DVD 2 of that re-spin, he/she may try to test
it against the verification step in the installation process. You don't have
to perform a real installation to verify the media, just boot a computer and
wait till you get into the verification step. If it passes, please calculate
the SHA1SUM for the image and post it.
Otherwise, I'm afraid I may have to re-download the the suspected iso image
again, which may take a few other days.

----- Original Message ----
From: TV Sivaraman <tvsraman@xxxxxxxxx>
To: For users of Fedora <fedora-list@xxxxxxxxxx>
Sent: Wednesday, May 28, 2008 12:14:36 PM
Subject: Re: verifying iso images downloaded by jigdo during installation

You can verify using the sha1 text file provided at the download site:
sha1sum file.iso | grep -f sha1.txt.
You should be able to see sha1sum signature after this operation. If a
blank line is retuned, means your download image is bad. The above operation
takes a long time depending on your system's speed.
Sivaraman.

2008/5/28 Mohammed El-Afifi <mohammed_elafifi@xxxxxxxxx>:

I'm downloading the DVD iso images for fedora 9 everything 64-bit using
jigdo. This spin comes in 4 DVD's. I've finished downloading the first two
DVD iso images completely. I then tried to install fedora 9 and booted my
computer using the first DVD.
Before starting anakonda installer, I've the chance of verifying the
installation media. When I was prompted for verification, I chose to verify
the two DVD's I've till now. Actually, this was the sole purpose of running
the installation DVD, to verify the images I downloaded so far.
Everything went all right with DVD 1, however DVD 2 was reported to have
errors. I tried to verify DVD 2 using *jigdo-file* and the template file
for DVD 2, and *jigdo-file* reported that the image is good.
The problem can't even be with my DVD burner, because I haven't burned the
images yet. I used VMWare instead to boot a 64-bit virtual machine using the
iso files.
So now DVD 2 is reported to have errors by the verification step in the
installation process, while *jigdo-file* reports no errors about the
image.
Are all the installation media of the everything spin of fedora 9 64-bit
guaranteed to pass the verification process during installation or just the
first DVD(probably because it may match the official distribution fedora 9
64-bit DVD while the other DVD's aren't part of the official distribution)?
Is there a method to verify the image externally(with a third tool for
example) to settle if it's good or not?
Appreciating your help.


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Lane No. 5, 46A, Ravindrapuri,
VARANASI - 221005. INDIA
Ph. No. 91-542-2276605
919451273108
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