Re: cd burning not going well

[tyler <tyler.smith@mail.mcgill.ca>]

Bob Cox <debian-user@lists.bobcox.com> writes:

> On Tue, Jun 24, 2008 at 15:35:00 -0300, tyler
> (tyler.smith@mail.mcgill.ca) wrote:
>
>> A typical result is burning the CD with KB3, which appears to work, but
>> then complains that the disk image does not match the downloaded ISO
>> when the verification check completes. If I try and boot these CDs, they
>> get me as far as the Xubuntu opening screen, but when I use the built-in
>> 'check CD integrity' it fails. Trying to boot anyways fails, it just
>> hangs.
>> 
>> As I've said, I've tried multiple computers, OS, media, burning
>> programs, downloaded images (Ubuntu as well as Xubuntu). Does anyone
>> have any other suggestions for burning a CD? This makes no sense to me.
>
> Having never tried Xubuntu, I thought I would give it a go and see if I
> could reproduce any of the above.  I guessed you were using a Canadian
> mirror site so I tried downloading xubuntu-8.04-desktop-i386.iso from
> http://mirror.csclub.uwaterloo.ca/
>
> Using K3b it burnt it ok, but failed verification just as you say.  On
> the other hand, this is the first time I have ever ticked the
> 'verification' box so do not know if this is a frequent problem or a K3b
> oddity.
>
> However the resulting CD worked perfectly; the 'check CD integrity'
> test, which you mentioned, passed ok and Xubuntu appears to be running
> perfectly, so really none of this is of much use.  

More useful than you'd think! I grabbed one of the growing pile of CDs
that failed k3b's 'verification', and sure enough it passed its own
'integrity check' and now appears to be running just fine.

I ran both the k3b verification and the Xubuntu integrity check on each
of the first 6 failed burns, and since they all failed both tests I
assumed the k3b test was enough to indicate a disk was bad. But
apparently not. Now I just have to sift through the next ten disks to
see how many of them are usable. At least one is. Does anybody know what
the k3b verification is actually verifying?

Cheers,

Tyler