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Old 12-31-2005, 01:43 PM   #1
Automaton
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How often are ISOs corrupted?


Hi all, this is my first post here, and I'll make it quick... I just downloaded the first 4 debian sarge CDs. However, I've been running integrity tests, and atleast 2 of them aren't all there... So, how often does this happen and is there a way to fix the ISO without having to download the whole damn thing again? Why does it happen anyway, I thought line noise was mostly extinct in broadband?
 
Old 12-31-2005, 01:48 PM   #2
homey
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Hadn't happened to me for the last couple of years that I recall. Then, I got a bad load ( all 61MB ) of the puppy last night.
I would just download fresh and if it's still a problem, try a different site.
 
Old 12-31-2005, 01:52 PM   #3
BinJajer
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Depends. I get loads of corrupted isos when I download them the normal way. However, with download managers...
 
Old 12-31-2005, 01:55 PM   #4
Automaton
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Oh, so is it better to use BitTorrent? Because I couldn't seem to seed the second ISO onwards, so I just downloaded straight... could I just use something like the download manager plugin for firefox?
 
Old 12-31-2005, 01:58 PM   #5
BinJajer
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You can. For bittorrent you need a separate app, though.
 
Old 12-31-2005, 02:28 PM   #6
sundialsvcs
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It probably shouldn't happen, but sometimes it does happen.

Always check the ISOs against, at minimum, the md5sum that the files are supposed to have.

A stronger test would use gpg.
 
Old 12-31-2005, 03:42 PM   #7
J.W.
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If you frequently encounter corruption when downloading large files, there's a chance that noise on the line could be the problem. I'm assuming you are using DSL, and if so, the problem could be with a bad filter (I'm referring to the small plastic adaptor that you connect your phone line to) My sister was having a similar problem, and a new filter eliminated the issue. Obviously this isn't a sure cure, but I think it'w worth looking into. Good luck with it
 
Old 01-01-2006, 10:20 AM   #8
stress_junkie
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I always like to ensure that the MD5 checksum is valid. After all if someone wanted to create a bogus ISO file they would include a matching MD5 checksum number on their own site to validate it. So, when I download large files I go to a different mirror and get the MD5 checksum. I just thought I'd add this suggestion for the truly paranoid such as myself.
 
Old 01-01-2006, 11:05 AM   #9
saikee
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Think I have burn about 200 CDs abd DVDs.

My statistics is roughly between 4 to 6 daft Disks in a 100. I use 1Gb board band.

I only bother to do MD5 sum checks on DVDs and on CDs come in a set.
 
Old 01-01-2006, 12:06 PM   #10
Sepero
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Always use Bittorrent any time I can, and you should too.
Firstly, and most importantly, instead of just leeching, you are giving back too. Secondly, bittorrent does automatic md5 checking for you. That way, if a part is corrupted, bittorrent redownloads that corrupt part for you (and not the whole CD).
 
  


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