CD and DVD ISO images

[Todd Denniston]

Arthur Pemberton wrote, On 01/26/2008 09:16 PM:
> On Jan 26, 2008 8:11 PM, Jeroen van Meeuwen <kanarip at kanarip.com> wrote:
>> William Hooper wrote:
>>> On Jan 25, 2008 4:58 PM, Arthur Pemberton <pemboa at gmail.com> wrote:
>>>
>>>>> Way be when I first looked at downloading Debian, I had a similar
>>>>> experience.  The difference was that I see no value in having to
>>>>> download and install a special program that I'm going to only use once
>>>>> to download one thing.  I already have ways of downloading files via
>>>>> ftp, http, etc., why do I need to mess with this new program?
>>>> Well... it does use http. The why would be for similar reasons people
>>>> use torrent. Also like why you could use a telnet client to browse to
>>>> view a web page via http, but you get a browser instead (bad example).
>>> Exactly my point.  I already have a bunch of programs to download
>>> files.  "Bob" is going to ask why he can't just use IE, Firefox,
>>> uTorrent, <insert P2P app-o-the-week>.  Why do I need this "special"
>>> download program that I've never heard of that I will only use to
>>> download Fedora?  If Linux is that hard, why bother...
>>>
>>> Personally, I can see where jigdo makes sense if you already have some
>>> of the files downloaded, but the new user is going to be starting from
>>> zero.
>>>
>> Luckily, Jigdo isn't mutually exclusive with BitTorrent. Concerning the
>> issues stated, I hope distribution via BitTorrent is going to continue.
>> Jigdo is one way for users to get the distribution whereof I assume it
>> is a better and way more efficient way - for those who can use it.
>>
>> Kind regards,
>>
>> Jeroen van Meeuwen
>> -kanarip
> 
> 
> Frankly Bittorent+Jigdo seem the ideal combo. There is no one who
> can't technically used jigdo, while there are who can't use torrent.
> 
> 

As a user who technically can not use torrent, I would like to know (and don't 
have time to understand the new tool yet), can I us jigdo with only a copy of 
a yum repo, i.e., if I do not have an ISO to diff against?  Otherwise at least 
a "seed" ISO is going to be needed in the mirrors for each release.

And I assume that the md5/shasums of the resulting ISO will[1] NOT match those 
as produced by the fedora system in either case, correct?  Which means I have 
to have rpm (armed with appropriate keys) walk the whole repository and verify 
packages before making the jigdo ISO.

[1] with moderately high probability.

-- 
Todd Denniston
Crane Division, Naval Surface Warfare Center (NSWC Crane)
Harnessing the Power of Technology for the Warfighter