jigdo

[John Summerfield]

John Poelstra wrote:
> Adam Pribyl said the following on 04/25/2008 01:25 PM Pacific Time:
>> I appreciate the effort put into preparing jigdo and templates for F9, 
>> however I'm bit strugglig what is the purpose of this method. It's 
>> maybe great for server side distribution, but it's bit useless without 
>> users using it right? As of now, there is no description how to use 
>> those cryptic .jigdo file on fedoraproject pages. You can find it only 
>> on http://fedoraunity.org/solved/post-install-solutions/jigdo/ and it 
>> actually is not a "one click" method (btw: pyjigdo I did not found in 
>> repos for F8, or am I wrong?). Would it be worth droping at least note 
>> at get-fedora pages what to do with those jigdo files, if we do not 
>> have an application to asociate them in web browser?
>>
>> Adam Pribyl
>>
> 
> Jigdo provides the ability to build ISOs locally by pointing at existing 
> packages you already have in conjunction with a jigdo file (which 
> provides paths to mirrors to obtain packages which you may be missing 
> and a list of the packages needed to build a particular ISO) and a 
> template file that provides the basis of the ISO you wish to build.  If 
> don't have a majority of the packages locally, in my experience, it 
> faster to get ISOs via bittorrent or directly from a mirror.

A problem or two with bittorrent:
   IAPs don't particularly like it; some throttle peer2peer by various 
means, some who didn't are starting to charge for uploads.
  ADSL and (I think) are asymmetric protocols for exchange of data. It's 
predicated on the assumption users download more than upload. With 
bittorrent and the like, that's not so and it can cause bottlenecks that 
are bad for other users.

jigdo can be even more friendly than using your IAP's preferred mirror, 
especially if one combines the two.

I use it to good effect updating Debian ISOs, and it should do equally 
well with Fedora respins.

btw Debian has a good writeup on Jigdo too.


> For starters you want to download one of the .jigdo files
> http://download.fedoraproject.org/pub/fedora/linux/releases/test/9-Preview/Fedora/i386/jigdo/ 
> 
> 
> and then from a command line:
> jigdo-lite <file.jigdo>

I think jigdo-list http://example.com/some.jigdo works too.



-- 

Cheers
John

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