1 checksum keeps failing with feisty-desktop-i386 21022007

[Michael R. Head]

On Fri, 2007-02-23 at 18:33 -0500, Matthew Flaschen wrote:
> Michael R. Head wrote:
> > On Fri, 2007-02-23 at 20:18 +0200, Ari Torhamo wrote:
> >> I just downloaded and burned  feisty-desktop-i386.iso of 21.7. I keep
> >> getting one checksum fail when I check the disk no matter what I do. I
> >> have downloaded the  file three times and burned it to two different
> >> disks (from different manufacturers). Could it be that the file is
> >> corrupt? I have downloaded and burned feisty twice before this without
> >> problems. Actually, to my remembering, I have never had a checksum
> >> problem with any of my ubuntu disks before.
> >>
> >> Is anyone else having problems with this file? In the meantime I might
> >> give herd 4 a try to have something to move on with.
> > 
> > You can mount the ISO itself before burning and check the checksums.
> > 
> > $ mkdir iso
> > $ sudo mount -o loop ubuntu-6.06.1-desktop-i386.iso iso
> > $ cd iso
> > $ md5sum -c md5sum.txt
> > ...
> > lots of output
> > ...
> > 
> > If everything's OK, then the ISO is fine, and the problem may lie with
> > the burner or media.
> 
> If you want to check the iso before burning, just run md5sum on it:
> 
> md5sum ubuntu-7.04-whatever.iso
> 
> , then compare to the appropriate md5sum at
> https://help.ubuntu.com/community/UbuntuHashes .  There's no need to
> mount it.

Certainly, that will ensure that the ISO downloaded correctly. But it
wouldn't necessarily diagnose Ari's problem.

The goal I was attempting to achieve was to check if the contents of the
ISO were built correctly. 

The symptom that Ari was describing was that one file was failing its
md5sum after being burnt. I was suggesting that he make sure that the
files inside the ISO were OK before being burnt.

> Matthew Flaschen
> 
-- 
Michael R. Head <burner at suppressingfire.org>
http://www.suppressingfire.org/~burner/
http://suppressingfire.livejournal.com
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