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Old 05-15-2013, 08:32 PM   #1
pcfast
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Question No MD5SUM Files Match! How To Fix?


I've downloaded a few different versions of Lubuntu and Linux Mint. I've checked the Md5Sum file on all of them and EVRYTIME they don't validate.

I mostly used Torrents to download them as it is faster and doesn't take resources from the distros servers. I've tried downloading them directly and they still don't match when I've burned or upgraded them to a CD/DVD or made a bootable USB stick.

What should I do to make sure I get the right uncorrupted Linux install version?
 
Old 05-15-2013, 08:47 PM   #2
evo2
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Hi,

Quote:
Originally Posted by pcfast View Post
I've tried downloading them directly and they still don't match when I've burned or upgraded them to a CD/DVD or made a bootable USB stick.
... do they match *before* burning them?

For the torrents, where are you getting the .torrent files from?

As a sanity check, try the following, and post the output of the last command:
Code:
wget http://cdimage.debian.org/debian-cd/7.0.0/amd64/iso-cd/MD5SUMS
wget -c http://cdimage.debian.org/debian-cd/7.0.0/amd64/iso-cd/debian-7.0.0-amd64-netinst.iso 
md5sum -c MD5SUMS 2>/dev/null |grep debian-7.0.0-amd64-netinst.iso
NB. This iso file is 221M.

Evo2.
 
Old 05-15-2013, 09:11 PM   #3
pcfast
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I always get Torrent files from the ditros main site. Lubuntu.net and LinuxMint.com
 
Old 05-16-2013, 08:07 AM   #4
onebuck
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Member Response

Hi,

This procedure from Linux Mint forum should help: How To: perform MD5 or SHA1 check

If you are testing the md5sum for the burnt ISO image on CD/DVD then the problem could be due to padding issues from the media application. I use k3b and never create coasters. I am usually at fault for a created coaster.

You could use 'cmp';
Quote:
excerpt form 'man cmp';
cmp - compare two files byte by byte

SYNOPSIS
cmp [OPTION]... FILE1 [FILE2 [SKIP1 [SKIP2]]]

DESCRIPTION
Compare two files byte by byte.
EDIT: Checkout CdromMd5sumsAfterBurning.

Last edited by onebuck; 05-16-2013 at 08:10 AM. Reason: add link
 
Old 06-30-2013, 04:15 PM   #5
pcfast
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Quote:
Originally Posted by onebuck View Post
Hi,

This procedure from Linux Mint forum should help: [B]How To: perform MD5 or SHA1 check
Tried that and I and the MD5Sum still did not match. I check before burning to a CD/DVD or USB key.
 
Old 06-30-2013, 05:23 PM   #6
tallywhacker
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Hi, not to insult your intelligence, but you are absolutely sure that you are getting the correct md5 for the iso?

I say this as the chances of both of those sites putting out bad md5's or iso's on DD or torrent is slim; as is the idea that all suggestions above are incorrect, as they are not. It is likely user error.

Quote:
don't match when I've burned or upgraded them to a CD/DVD or made a bootable USB stick.
Quote:
I check before burning to a CD/DVD or USB key.
You seem unclear here, please clarify when the mismatches took place.

Try in a terminal (presuming you are checking from a linux system):

md5sum *.iso

or

sha1sum *.iso

where * is file name, you will also want to specify a path.

Evo2 had suggested md5sum and gave you a command to post the output, however i see no response indicating you tried this. Please do try md5sum and sha1sum and double check you are using correct sums for the iso, if in any doubt over the commands please do ask or try: 'man md5sum' or 'man sha1sum' in terminal.

If you are 100% confident that the you have followed the correct steps, please link me the files you are checking (both iso and sum) and i will attempt myself for you.

Thanks

Last edited by tallywhacker; 06-30-2013 at 05:26 PM.
 
Old 06-30-2013, 08:16 PM   #7
evo2
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Hi,

Quote:
Originally Posted by pcfast View Post
Tried that and I and the MD5Sum still did not match. I check before burning to a CD/DVD or USB key.
If the md5sum checks _always_ for different files on different mirrors downloaded using different methods, then the one common thing must be the way the check is being performed. Have you tried the simple check I suggested?

Evo2.
 
Old 06-30-2013, 08:24 PM   #8
rokytnji
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Gee, what is the problem of posting

Code:
$ md5sum ploplinux-4.2.2.iso 
572a8ce3a821200d25f827b079a40d7a  ploplinux-4.2.2.iso
then

Quote:
288f4bae9c3a5b5b6cb5b6f0cd4d7088 ploplinux-4.2.2-X-brl.iso


6b71761318e422550612730378651d5b ploplinux-4.2.2-X-gnome-tiny.iso


080825840a82e4f18962480d50b258b0 ploplinux-4.2.2-X.iso


572a8ce3a821200d25f827b079a40d7a ploplinux-4.2.2.iso
572a8ce3a821200d25f827b079a40d7a ploplinux-4.2.2.iso


789c2d23010a3805c4d97e9ff1559a36 ploplinux-4.2.2.tgz


f7b6070cf0b1bf4e1b1b1966c1090298 ploplinux-4.2.2.zip
instead of

Quote:
Tried that and I and the MD5Sum still did not match.
 
Old 06-30-2013, 09:15 PM   #9
pcfast
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Quote:
Originally Posted by tallywhacker View Post
Hi, not to insult your intelligence, but you are absolutely sure that you are getting the correct md5 for the iso?

Try in a terminal (presuming you are checking from a linux system):
I get the MD5Sum from the Linux Mint site. I'm not checking from a Linux system.
 
Old 06-30-2013, 09:46 PM   #10
tommcd
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Quote:
Originally Posted by pcfast View Post
I get the MD5Sum from the Linux Mint site. I'm not checking from a Linux system.
Then did you try using the md5sum check method that Onebuck posted: http://community.linuxmint.com/tutorial/view/346
And if so, then what was the result?
Also, does the md5sum for the downloaded iso check before you burn the CD??
Also, be sure to always burn the iso image at the slowest possible speed to avoid errors.

How exactly are you burning the iso image CDs??? See this tutorial on burning iso image CDs from Windows:
https://help.ubuntu.com/community/BurningIsoHowto

Last edited by tommcd; 06-30-2013 at 09:48 PM.
 
Old 06-30-2013, 11:37 PM   #11
tallywhacker
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Quote:
I get the MD5Sum from the Linux Mint site.
I asked for a link so that i could verify you are using the correct md5 for whatever iso you want, download it, and check it for myself. Nevermind, i tried with a random iso instead:

Linux Mint 15 "Olivia" - Cinnamon (64-bit)
md5 2396a39e802a0463bf1727acd72d0700

Quote:
$ wget http://mirror.bytemark.co.uk/linuxmi...-dvd-64bit.iso
--2013-07-01 04:44:36-- http://mirror.bytemark.co.uk/linuxmi...-dvd-64bit.iso
Resolving mirror.bytemark.co.uk (mirror.bytemark.co.uk)... 212.110.161.69, 2001:41c8:20:5e6::10
Connecting to mirror.bytemark.co.uk (mirror.bytemark.co.uk)|212.110.161.69|:80... connected.
HTTP request sent, awaiting response... 200 OK
Length: 959447040 (915M) [application/x-iso9660-image]
Saving to: ‘linuxmint-15-cinnamon-dvd-64bit.iso’

100%[==================================================================================================== ========>] 959,447,040 953KB/s in 32m 25s

2013-07-01 05:17:01 (482 KB/s) - ‘linuxmint-15-cinnamon-dvd-64bit.iso’ saved [959447040/959447040]
Quote:
$ md5sum ~/linuxmint-15-cinnamon-dvd-64bit.iso
2396a39e802a0463bf1727acd72d0700 /home/tallywhacker/linuxmint-15-cinnamon-dvd-64bit.iso
Obviously they match, so given that:

Quote:
I'm not checking from a Linux system.
Debain suggest winmd5sum from windows. Should all other avenues suggested in the post above fail then try it: http://www.nullriver.com/products/winmd5sum

If in doubt, use the iso i just verified. If all suggestions in this thread fail, recount every step that you took with each piece of software you have used and post it either here (and i will retrace your steps in windows later) or on the support forum for whatever software you are using. Otherwise you are pi*sing in the wind if expecting a resolve. You are being a bit too terse with information and only just disclosed you are not even using linux despite asking for support in a linux forum! *cough*

Last edited by tallywhacker; 06-30-2013 at 11:49 PM.
 
Old 07-01-2013, 12:13 PM   #12
DavidMcCann
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Have you booted the Mint disk and used the disk-checker provided? That checks the MD5s of all the files on the disk: if the disk passes its validation, then it's OK whatever Windows says about the iso.
 
Old 07-01-2013, 06:08 PM   #13
pcfast
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Exclamation Linux Mint 13

Quote:
Originally Posted by tallywhacker View Post
I asked for a link so that i could verify you are using the correct md5 for whatever iso you want, download it, and check it for myself.
I am trying to install Linux Mint "Maya" 13 Cinnamon desktop 64-bit.

http://www.linuxmint.com/edition.php?id=106

---------- Post added 07-01-13 at 07:09 PM ----------

Quote:
Originally Posted by DavidMcCann View Post
Have you booted the Mint disk and used the disk-checker provided? That checks the MD5s of all the files on the disk: if the disk passes its validation, then it's OK whatever Windows says about the iso.
Didn't know you could do that! Will try to do it and report back. Thanks David!
 
Old 07-11-2013, 10:58 PM   #14
pcfast
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Integrity Check

By Disk Checker do you mean Integrity Check? I tried that and got this message.

Quote:
Uncompression Error - System Halted
I tried "Check Integrity of the Medium" and it found no errors.
 
Old 07-12-2013, 09:40 PM   #15
tommcd
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Quote:
Originally Posted by pcfast View Post
I tried "Check Integrity of the Medium" and it found no errors.
So you ran the integrity check option from the live CD as it says here on the Mint forums:http://community.linuxmint.com/tutorial/view/69
Quote:
LiveCD
What is the login and password for the liveCD?
The login is "mint" and the password is blank (there is no password, when asked, simply press Enter).
Note: If the liveCD doesn't log you in automatically, there might be something wrong with your CD. Boot from the CD and use the "Check the integrity of the CD" option.
If that passes the CD should be good. Running that integrity check will check each and every file on the CD. That is why it takes a minute or two to run.
So are you still unable to install Mint? Are you able to boot to the Mint desktop by launching the OS from the live CD?

Last edited by tommcd; 07-12-2013 at 09:41 PM.
 
  


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