wrong or missing md5sum

Hello to all, I’m trying to return to opensuse after 11.3 I understand 11.4 is much better, anyway I have downloaded the 64-bit dvd 5 times. 2 from the opensuse site directly (that has no md5sum for the 64-bit) & 3 from GA Tech U.S.A site as it is the closest 1 to me (which does have a md5sum) but the md5sum has not been the same any of the 3 times. (I know the dvd will have a media check after burning. but it could get costly if it is bad) could some 1 shad some light on this for me or am I missing something? thanks for any help :frowning:

You don’t need to keep re-downloading
Especially if you use bittorrent

This the correct sum

082ebfac494b41cd56b38fb4218c545d openSUSE-11.4-DVD-x86_64.iso

Thanks caf4926 for the quick response. I do not trust torrents because there very unkind people out there. case & point: this is the sum from the ISO 82651aac57e6efe57efb5ef47acd87ee this is the one from the sum file 082ebfac494b41cd56b38fb4218c545d from the same site. but it could just be a honest mistake on someones part. I shall try the torrent & post after it’s done. thanks again:|

The SUM I gave you is correct
When you run the check the downloaded .iso must match that
With torrent downloads you just force recheck of the download if it comes up wrong. Many torrent clients do this by default anyway.

Yes sir I understand the sum you gave me is correct as it is the same sum as the 1 on the Georgia Tech ftp. but isn’t the point of a check sum to verify that the file or in this case ISO is not corrupt or changed form the original 1? I am torrenting it now will post again after checking. thanks

What is the exact command you are using to obtain the md5sum of the downloaded image?

Theremay be some useful info here for you
NEW Users - openSUSE Pre-install (general)

When you load the .iso in to k3b it checks the md5sum and reports it for you

And just FYI: Even when you have the md5sum correct, that’s not the end of it. You have to burn it and then do the media check.

On 07/16/2011 04:06 PM, SuseDragon wrote:
>
> isn’t the point of a check sum
> to verify that the file or in this case ISO is not corrupt or changed
> form the original 1?

that is correct…

what is the file system in use where you are downloading to…
(some file systems are not capable of storing such a large single file)

please thoroughly read the info here
http://en.opensuse.org/SDB:Download_help


DD
Caveat-Hardware-Software
openSUSE®, the BMW® of operating systems!

ken_yap Wrote: What is the exact command you are using to obtain the md5sum of the downloaded image?

SuseDragon says: I didn’t. I used Firefox.

caf4926 Wrote: When you load the .ISO in to k3b it checks the md5sum and reports it for you
And just FYI: Even when you have the md5sum correct, that’s not the end of it. You have to burn
it and then do the media check.

SuseDragon says: yes I know about the md5sum check in k3b, as i have had a good deal of success
using k3b with openSUSE 11.3 & other Distros. I also use the media check after a freshly burnt suse
disk. (1 of the things i love about openSUSE)

DenverD Wrote: what is the file system in use where you are downloading to…
(some file systems are not capable of storing such a large single file)

SuseDragon says: on my win HDD is ntfs-3 I guess. not sure if ntfs is ver.3 in win 7
& ext4. I have tried downloaded to both over the last 5 times thinking it could be spyware
or a virus in win.

OK I have solved my problem.:wink: when I checked the md5sum in windows after the D/L it showed the wrong sum
same with PCLinuxOS. but then I checked the download I did with windows from PCLinuxOS with k3b & the md5sum was the same, strange. now just gotta burn 1 that will verify after the burn. tried 1 but bad disk.
THANKS again for all the help & links (good read) I look forward to harassing you people some more in the future rotfl!

P.S. I not only did I start this thread for help, but also thought that the ISO mite have been changed. (there r people in the world who just hate others & try to bring there PC’s down) But this may not be possible as my knowledge of Linux is still very limited. I hope to help others with linux problems some day

I think you can trust the torrent-links from opensuse.org, no need to be paranoid… :slight_smile:

What I meant was, how are you computing the checksum of your image to compare against the published checksum.

It’s not a Linux thing. It’s the way the torrent protocol is designed. The checksum of each block is stored at the tracker, which you have to trust. If a rogue participant provides an altered block, it will not pass the checksum test and be rejected.

In addition there is a checksum across the whole ISO image, and each package has a checksum and signature of the repo.

Facts will free you from fear.

OK I have it installed & updated working grate & much faster than 11.3. seems more stable too :slight_smile: thanks again for all the help!!
Just 4 the record it’s not paranoia. it’s more like frustration. OK well maybe a little paranoia. besides if someone was to change a file or ISO
& it was not known. wouldn’t that give openSUSE a bad rap? this was my concern.because i love openSUSE & wont more people to use it.
Thanks 4 the torrent info. don’t torrent because i use a net connection with 6 other people & my ISP starts throttling me if i upload to much

I don’t think I ever downloaded a Linux .iso with a bad md5sum, it’s the burning part that usually causes problems for most (me included)

Enjoy 11.4 though

You are blessed then. We (on my home network) are being hit with attacks all the time from what i see in the router logs (don’t know why) but it would seem that some get through. I even tried not using no firewall. thinking they would see noting of value & just leave. but as i stated before some people just wont to cause problems for others (what a bumber) & I shall enjoy 11.4. hope to learn more command line stuff. but it’s a bit of a learning curve after 20+ years of microJUNK. oh sorry if it offends some. but it’s true.

If your router has a hardware firewall, that will deal with most stuff. In bittorrent, I always disable DHT.

My, so many misunderstandings and wild speculation in such few words…

You see, in case you are attacked the attacker usually is not some evil scriptkiddie who wants to steal something “of value”, but rather a →bot. Those bots have no personal interest in the files on your system (in fact, they do not even have anything one would call a “personality”). Their mission is to take over your system to use its resources, thus increasing their flock to attack other systems or spread spam etc.

You obviously are a bit paranoid. Even if your system is attacked frequently, it is not a thing to worry about. It’s pretty common. When analysing such attacks, it is very important not to speculate about intentions or the like, but to look at facts. “It would seem that some get through” is not a fact at all. It’s paranoia.

The thing is: overreacting is not going to help you when it comes to security issues. It will make you overlook the actual facts.

I guess that’s why i just had to reset my gmail password??? I am not paranoid. just not dumb eather!!

On 2011-07-16 15:36, SuseDragon wrote:
>
> Thanks caf4926 for the quick response. I do not trust torrents because
> there very unkind people out there.

It does not matter: the protocol is designed to detect them and discard
those “peers”. The end result is guaranteed correct (if you have a good
tracker, which is supplied by opensuse servers).

Else, you can use metalinks with a good metalink downloader, like aria2c.
It will guarantee a fast and error free download.

Help in the download help page.


Cheers / Saludos,

Carlos E. R.
(from 11.4 x86_64 “Celadon” at Telcontar)