> From: bob parker, Sent: Friday, March 07, 2003 11:10 AM
> On Fri, 7 Mar 2003 03:16, Brad wrote:
> > See this post for more detail on this subject:
> > 
> http://lists.debian.org/debian-devel/2002/debian-devel-200211/
> msg03076.html
> >
> > -Brad
> >
> Checked it out. From the posts it is still inconclusive.
> So far as jigdo is concerned I have the isos and the md5sums 
> all match the 
> source. This is about verifying the burnt cdr.
> 
> So far, the only reliable technique I have been able to find 
> is to do it file 
> by file. 
> 
> That is easy if you have no subdirectories on the cdr, but 
> gets a little 
> messy if you do, the files have to be piped to md5sum from 
> find and xargs.
> 
> Example:
> find /cdrom1/ -type f -print | xargs md5sum | cut -d ' ' -f 1 
> | sort > sumscdr
> 
> mount whatever.iso -r -t iso9660 -o loop /mnt
> 
> ind /mnt/ -type f -print | xargs md5sum | cut -d ' ' -f 1 | 
> sort > sumsiso
> 
> diff sumsiso sumscdr
> 
> Not sure if the sort step is really needed.


I'm confused, Bob.

If you copy the ISO from the CD-R to your hard drive, and do an md5sum on
it, and it matches the original ISO's md5sum, you just can't have two files
that are different, unless they are different in miraculously md5sum
balancing ways.


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