md5sum Mismatch- 10.04.2 Alternate Install

[Digital_Resistance]

Hello,

I downloaded the Xubuntu 10.04.2 Alternate Install CD ISO file from
http://mirror.anl.gov/pub/ubuntu-iso/CDs-Xubuntu/10.04/release/

When I checked the md5sum of the downloaded file, however, there was a mismatch.

The md5sum given at both
http://mirror.anl.gov/pub/ubuntu-iso/CDs-Xubuntu/10.04/release/MD5SUMS
as well as
https://help.ubuntu.com/community/UbuntuHashes
is 209cfc88be17ededb373b601e8defdee *xubuntu-10.04.2-alternate-i386.iso
but running the command,

md5sum xubuntu-10.04.2-alternate-i386.isogenerated the following, obviously different checksum for me:

098674ad5a59f0115030c5c0c3973899 xubuntu-10.04.2-alternate-i386.iso

(It also took unusually long to generate the checksum- around thirty minutes.)

Is it possible that the file was corrupted or tampered with on the server?

[Plueonic]

That means you have a corrupt download..You'll need to re-download the image and while doing so, its a better choice to use the torrent or zsync as it would minimize such corruption

[sourchier]

I think that your download did not completely finish. Flaky network connections--and overburdened servers--can contribute to this. You can try to rescue the incomplete iso using wget.

Code:

cd /path/to/iso

wget -c -4 http://mirror.anl.gov/pub/ubuntu-iso/CDs-Xubuntu/10.04/release/xubuntu-10.04.2-alternate-i386.iso

And see if the download completes.

[Digital_Resistance]

Thanks for the replies.

I'm pretty sure the file size matched what it was supposed to be but I suppose that indication could be off, especially since rounding is probably involved.

I was afraid that maybe the server had been compromised with a tainted file but I suppose that had such a thing occurred, it most likely would have been discovered much sooner.