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Old 03-19-2009, 09:56 AM   #1
cola
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Checking debian-500-i386-DVD-1.iso


Hi,
I downloaded debian-500-i386-DVD-1.iso from here:
http://cdimage.debian.org/debian-cd/5.0.0/i386/iso-dvd/

I ran this from terminal
"md5sum debian-500-i386-DVD-1.iso"

The result is :
71302e0417a44f15b4833e8950856340 debian-500-i386-DVD-1.iso

But this link says other:
http://cdimage.debian.org/debian-cd/...so-dvd/MD5SUMS
Quote:
4d885020babadbb2ad2206156fb590e6 debian-500-i386-DVD-1.iso
4f631951322a9acb4d39d4f2606aa0b9 debian-500-i386-DVD-2.iso
ba3c1acdbe25b64a51c3ed695be7e041 debian-500-i386-DVD-3.iso
cd78b8a6cc6702c437065af254e2a409 debian-500-i386-DVD-4.iso
7662bd8dea0ded20ed206a06186b1846 debian-500-i386-DVD-5.iso
So would this dvd work?
Can I install debian with this dvd(debian-500-i386-DVD-1.iso)?
Should I write this iso in a blank dvd?

I only downloaded this:debian-500-i386-DVD-1.iso
 
Old 03-19-2009, 10:51 AM   #2
AlucardZero
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If the md5 sums don't match, the download is proably corrupted. Redownload, using the torrent if possible so that you only have to redownload what got corrupted.
 
Old 03-20-2009, 11:11 AM   #3
lugoteehalt
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You should be able to double check like this:

Assuming you're in the same directory as the .iso.

?As root:
Code:
# mount -t iso9660 -o loop debian-500-i386-DVD-1.iso Empty/Directory
As user:
Code:
$ cd Empty/Directory
$ md5sum -c md5sum.txt

Last edited by lugoteehalt; 03-20-2009 at 11:12 AM.
 
Old 03-20-2009, 01:34 PM   #4
omes
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I second AlucardZero on getting the torrent and doing a check that way. Something definitely _is_ different if the md5sum is different - which of course is not good.
 
Old 03-22-2009, 08:11 AM   #5
abd_bela
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You can check your DVD (before downloading again!!?? ) with :
mount -o loop debian-500-i386-DVD-1.iso mountPt
cd mountPt
md5sum -c md5sum.txt | grep -v "OK"

if nothing is displayed at end of the command; this means that all packages are good.

best regards
bela
 
Old 03-22-2009, 09:48 AM   #6
omes
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Quote:
Originally Posted by abd_bela View Post
You can check your DVD (before downloading again!!?? ) with :
mount -o loop debian-500-i386-DVD-1.iso mountPt
cd mountPt
md5sum -c md5sum.txt | grep -v "OK"

if nothing is displayed at end of the command; this means that all packages are good.

best regards
bela
Thank you for repeating what lugoteehalt just said...

Why are all of you against checking the file with bittorrent? that way you'll be sure nothing is wrong with the blocks for boot either. With bittorrent the integrity of the whole iso is preserved, not just the packages used for install. It will take less time, and be of less than a headache than if something _is_ wrong even though all the packages are fine...
 
Old 03-25-2009, 06:15 AM   #7
lugoteehalt
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Quote:
Originally Posted by omes View Post
Why are all of you against checking the file with bittorrent?
Not against it. Just above md5sum -c md5sum.txt takes about 30secs.
 
Old 03-25-2009, 06:53 AM   #8
omes
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Quote:
Originally Posted by lugoteehalt View Post
Not against it. Just above md5sum -c md5sum.txt takes about 30secs.
As would a check with bittorrent. However the latter is 100% sure to identify the bad bits, and replace them (read: download) the correct ones, whereas the md5 approach will only identify a package if and when it is broken. We have already found out that this iso _does_ contain changed bits - now the correct approach is to identify them and download the correct ones.

- omes
 
  


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