Install fails - md5 confusion

Thanks in advance to anyone who can offer help, i’ll give as much details as possible:

I wan’t to install openSUSE 11.2 on my HP omnibook xe4500. I formatted the hard drive with a program “Darik’s Boot & Nuke”
I downloaded the DVD iso file yesterday and burnt it, as it was installing (KDE) I got occasional errors that certain packages could not be downloaded. Finally at about half way through the install it failed completely and aborted. I checked the install media where it finds a problem at sector 192640.
To be sure I didn’t make a mistake I downloaded the iso again with bittorrent and used winMd5sum to check the checksum which matches the one listed. Strangely, when I use ImgBurn to burn the DVD the md5 checksum displayed is entirel different - 0e5fbf37153eb52d0874826a3801a11c, why that is I just can’t figure.
With this copy of the iso burnt it fails at the system analysis stage with the error “Unable to create repository from URL ‘dvd:///’” - from other threads I see that this can be because of an md5 error but i’m not sure if mine is or not since I get 2 different results from 2 different programs. The check install media fails at 293696 on this DVD and to verify that the burn was OK I did it twice, at the slowest speed i’m able to which I think is 4x.
Sorry i’ve gone way ott with the info but I just really wan’t to get some help as I really wan’t to get this up and running. About 4DVDs later and i’m still nowhere! Again, thanks in advance for any help.

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

Get a better md5sum checker. It should match what is on the download page
and typically a torrent application is correct. Freeware versions of
md5sum are available, and the utility comes by default on Linux so if you
have an existing Linux box check it on there:

md5sum /path/to/the/file.iso

md5sum.exe is also available if you are limited to a poor OS.

Once downloaded properly burn it as slowly as possible; decrease your
burning speed to whatever your burner will support and give that a try.

Good luck.

MrLittleMicky wrote:
> Thanks in advance to anyone who can offer help, i’ll give as much
> details as possible:
>
> I wan’t to install openSUSE 11.2 on my HP omnibook xe4500. I formatted
> the hard drive with a program “Darik’s Boot & Nuke”
> I downloaded the DVD iso file yesterday and burnt it, as it was
> installing (KDE) I got occasional errors that certain packages could not
> be downloaded. Finally at about half way through the install it failed
> completely and aborted. I checked the install media where it finds a
> problem at sector 192640.
> To be sure I didn’t make a mistake I downloaded the iso again with
> bittorrent and used winMd5sum to check the checksum which matches the
> one listed. Strangely, when I use ImgBurn to burn the DVD the md5
> checksum displayed is entirel different -
> 0e5fbf37153eb52d0874826a3801a11c, why that is I just can’t figure.
> With this copy of the iso burnt it fails at the system analysis stage
> with the error “Unable to create repository from URL ‘dvd:///’” - from
> other threads I see that this can be because of an md5 error but i’m not
> sure if mine is or not since I get 2 different results from 2 different
> programs. The check install media fails at 293696 on this DVD and to
> verify that the burn was OK I did it twice, at the slowest speed i’m
> able to which I think is 4x.
> Sorry i’ve gone way ott with the info but I just really wan’t to get
> some help as I really wan’t to get this up and running. About 4DVDs
> later and i’m still nowhere! Again, thanks in advance for any help.
>
>
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MrLittleMicky wrote:
> Sorry i’ve gone way ott with the info but I just really wan’t to get
> some help as I really wan’t to get this up and running. About 4DVDs
> later and i’m still nowhere!

no, you did good!

-welcome-

from what you wrote i assume you carefully followed all the hints in
http://en.opensuse.org/Download_Help (which includes how to do the
md5sum, and mentions a different scheme sha1sum…and, how to check
the iso prior to burning the disk…and, it talks about burning the
disk with several operating systems…

what i don’t see in there is what i’ve heard other ‘old heads’ say
here: use VERY GOOD blank DVDs…there is a difference in quality as
well as price, see: http://www.digitalfaq.com/reviews/dvd-media.htm

no matter how many coasters you make, do NOT try to install from any
CD/DVD which does not give 100% ok when you do this:
http://tinyurl.com/yajm2aq

come back and let us know how you get on…


palladium

Thanks for the quick replies!

ab:
I used md5sum and it verified that the checksum was correct. To burn the iso image I used ImgBurn (freeware) and it showed a totally different checksum of the iso file before burning. I used the slowest speed, I think mine is 4x.

palladium:
For all of the DVDs I burnt I checked the installation media as you show, all returned errors (see original post) even though (I think) the checksum is correct (2 different programs, 2 different results, 1 correct, 1 not!?!)

My DVDs are value brands alright, you think this might be an issue?

That doesn’t sound good. Was imgburn doing a MD5SUM though? Some of these programs have their own checksum methods.

Can you try another burning program?

I also used another freeware, burncdcc, this doen’t show the checksum but the same problems arose with the finished DVD.
With regard to ImgBurn yeah i’m fairly sure it is, the info near the top left on the window is “Imp ID: md5=***” where *** is the wrong checksum that I quoted earlier.
Totally confused.

Yeah me too. Puzzling how md5sum and imgburn disagree. What about md5deep, have you tried that checker?

I’ve seen that but tbh i’m not quite certain how to use it. Any other ones (that have a gui) please let me know and i’ll check with them. Right now i’ve downloaded both the GNOME and KDE discs and i’ll go ahead with an install of one of them, i’m getting upset with the whole DVD episode! :’( By not using the DVD, would I be loosing out on a lot of packages / sw?

No, the online repos have the same packages as the DVD.

Thanks for that, at this very moment the laptop is sitting beside with the cd drive near top speed, GNOME is installing since it downloaded first. The results on the md5 checksum were different between md5sum and ImgBurn again, I used burncdcc to burn this one. I’ve ran the check media beforehand and it was fine.
I’ll call back tomorrow night and hopefully will be able to tell you that i’ve been successful! Thanks for everything.

I have used ImgBurn for a while now and I have never had any issue with it. I am wondering if you might need to replace that drive, or if it is a laptop drive, just clean the laser with a Q-tip and some alcohol.

Sorry for my late response, I intended to be back sooner. As I said I downloaded GNOME from which the check media passed but about 1/3 of the way through the install it hung. On my second attempt I think I might finally have figured out the problem, maybe someone can confirm: I had forgotten that one of the RAM cards in the laptop got damaged some time back so I have actually got only 256Mb RAM, surely that’s too small?! At the moment I’m hunting down a RAM card, then i’ll try again.

The issue of the openSUSE DVD is still unresolved though, the check media failed on both DVDs (at different steps) but as already outlined I can’t verify for sure if the md5 is correct.

Wilson_Phillips: You may be correct but the disagreement between md5sum and ImgBurn is still odd, I don’t think a drive issue on my desktop would cause this?