How to check FC4.iso with sha1sum?

Jan Visser jan.visser at
Mon Jun 13 20:58:25 UTC 2005

Leopoldo Olmos wrote:
> How to check de stentz-dvd-XXXX.iso with sha1sum?
> Leopoldo Olmos

According to :

After downloading the ISO images, check the SHA1 checksums for the ISO 
images to ensure that your download was successful. Do this by running 
the sha1sum program from a shell prompt against your ISO images and 
comparing the values returned against the ones published by Red Hat. The 
file from Red Hat containing the official sha1sum values is called 
SHA1SUM and is located in the same directory as the ISO images on the 
FTP site.

The following illustrates the correct syntax for the sha1sum command:
sha1sum <isofilename>

In the above command, replace <isofilename> with the correct file name.

If the SHA1 sums match, burn the ISO images to CD-Rs or CD-RWs. Note: 
writing the ISOs to CD requires a program such as cdrecord. If you want 
to perform a hard drive installation instead, copy the ISO image files 
to a location on the hard drive that will not be reformated for Fedora 

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