When you download a Tuxedu .iso file we recommended that you test that the file is an accurate copy and safe to use. The MD5 calculation gives a checksum (called a hash value), which must equal the MD5 value of a correct ISO.
The program md5sum is designed to verify data integrity so that you can be sure that the file is not corrupted and is safe to use.
When you download Tuxedu look for the link for the MD5 hash which corresponds to the Tuxedu version you have chosen –
- Download and install winMD5Sum, if you are using MS Windows – it’s a free and open source hash verification program.
- Right-click the ISO file.
- Click Send To, then winMD5Sum.
- Wait for winMD5Sum to load and finish the checksum (this may take a significant amount of time depending on your computer’s performance).
- Copy the corresponding hash into the bottom text box.
- Click “Compare”
- A message box will say “MD5 Check Sums are the same” if the hashes are equal.
If you are already using a Linux distro then you will probably have the MD5sum utility installed by default – details of how to run it and details of how to checksum using a MAC can be found here on the Ubuntu site
Created using http://creativecommons.org/licenses/by-sa/3.0/ credit: ubuntu community documentation