verifying iso images downloaded by jigdo during installation

[TV Sivaraman]

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 at yahoo.com>:

> 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 at gmail.com>
> To: For users of Fedora <fedora-list at redhat.com>
> 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 at yahoo.com>:
>
>>   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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>> fedora-list at redhat.com
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>>
>
>
>
> --
> Dr. T. V. Sivaraman,
> Lane No. 5, 46A, Ravindrapuri,
> VARANASI - 221005. INDIA
> Ph. No. 91-542-2276605
> 919451273108
>
>
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>



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