Thanks for testing that. I did not think to md5sum the device itself but it it probably not a surprise as the md5sum for that might include unused but recorded space (zero filler and such). I am also reminded of back in my development days that it was nearly impossible to guarantee that two builds from exactly the same sources would be physically identical (logically and functionally of course, but ...).
I am going to recheck the DVD on another and better machine. Perhaps the old, slow, well used, and limited resources on the other one affected the verification.
BTW, this thread would be better titled How to Verify Optical Media after Burning.
On 9/27/06, Kenneth <madhse@yahoo.com> wrote:
I always thought you could md5sum the device, but when I tried that on the
Ubuntu CD it gave a different sum, even though their self-check was ok, so
I'm not sure any more.
--- Dazed_75 <
lthielster@gmail.com> wrote:
> I downloaded ubuntu-6.06.1-dvd-i386.iso and verified the md5sum against
> that
> listed at the download site. I then burned the DVD and got no errors. One
> nice thing ubuntu has in the
6.06 release is a menu option (on booting the
> CD/DVDs) to verify the CD/DVD content. When I tried this, it shows errors
> for some files.
>
> Surely there could be a problem with the burn, but I was wondering if there
> is any way to md5sum the DVD? The only thing I could think of is to make a
> .iso from it and I do not know if that would even be expected to reproduce
> the original iso and match its sum.
>
> I realize I probably need to burn another DVD, but the question is still a
> valid one.
> --
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