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Re: Fedora 7 media sets



On Thu, Feb 15, 2007 at 12:10:29PM -0500, Bill Nottingham wrote:
> Chuck Anderson (cra WPI EDU) said: 
> > Can we start including jigdo commands in the compose process so that 
> > .jigdo and .template files are made available for those who choose to 
> > use them?  I volunteer to help with this.  What parts need to be 
> > modified?  Pungi?
> 
> Does jigdo create bit-identical iso images?

Yes, that is the intent.  During template creation, it searches the 
big monolithic file (in this case .iso) and finds the bits that match 
files in the filesystem path that you point it to (tree).  It then 
writes a template that contains only the bits that don't match the 
tree.  During image recreation, it uses the .template and .jigdo to 
rebuild the original image, gathering the component files from the 
tree either locally or via FTP/HTTP and filling in the missing bits 
from the template.  The result is a bit-for-bit identical copy of the 
original image.


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