md5sum a dvd?

[Dazed_75]

FYI, I put the DVD in a better system and it verifies correctly.  I suspect
the problem had to do with trying to use it on a 1.7 GHz Celeron with only
256 MB of memory and a fairly old DVD ROM drive.  The question of how to
verify a burn remains however.

Darrin,
I was thinking I might try the burn again at a lower speed.  That might make
a DVD the old system could read though that would only help if the DVD were
the problem there.

Alan,
the verification step for the ubuntu disks is on the menu where if you put
in those options you boot to the Live version which is where you do HD
installs from.  IOW, I don't think there is any way to provide those options
before the integrity check.   Hmmm, maybe you can if there is an option to
cause the integrity check from that same command line.  I'll have to check
that.

Thanks folks for all the help (including making me use my brain :)

On 9/27/06, Alan Dayley <alandd at consultpros.com> wrote:
>
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> Dazed_75 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.
>
> This is taken from a description of installing Fedore Core 5.  Perhaps
> it also applies in your case?
>
> "There is apparently a minor bug in the installer causing some of the
> installation CDs to fail the media test even though they are ok. If some
> of your CDs fail, try again with "Linux ide=nodma" at the "boot:"
> prompt. If they pass then, they are ok, but it's best to use the same
> option when using them to install FC5. After installation, we'll remove
> "ide=nodma" from /boot/grub/grub.conf when we add some other options."
>
> Alan
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