How to check FC4.iso with sha1sum?

[Kevin J. Cummings]

Jan Visser wrote:
> Leopoldo Olmos wrote:
> 
>> How to check de stentz-dvd-XXXX.iso with sha1sum?
>>
>> Leopoldo Olmos
>>
> 
> According to http://fedora.redhat.com/download :
> 
> 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.

Yes, but if you have the SHA1SUM file, then you should invoke it as:

sha1sum -c SHA1SUM

and it will check every file listed in the SHA1SUM file for a good 
signature.

It will also tell you which files are "missing" from the current 
directory as well, but that's not a problem if you didn'w download them 
and aren't planning to burn them.

> 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 
> Core.
> 


-- 
Kevin J. Cummings
kjchome at rcn.com
cummings at kjchome.homeip.net
cummings at kjc386.framingham.ma.us