[CentOS] CentOS 7 iso file SHA-256 hashes

[Johnny Hughes]

On 03/03/2017 09:17 PM, Darr247 wrote:
> I downloaded CentOS-7-x86_64-Everything.iso (8,233,418,752 bytes) by
> clicking on the 'Everything' link in the 'Rolling' line on
> https://wiki.centos.org/Download (supposedly the 1611 build).
> 
> But when I look in the sha256sum.txt file from
> https://buildlogs.centos.org/rolling/7/isos/x86_64/ (where Chrome says that
> iso came from), there is no SHA hash for a file of that name. 
> 
> The reason I wanted to check it is because it's a different size than
> another one I found on my hard drive while looking through the Downloads
> history in Chrome.
> 
> The other file I found was CentOS-7-x86_64-Everything-1611.iso
> (8,280,604,672 bytes), which returns a hash of
> af4969ebbdc479d330de97c5bfbb37eedc64c369f009cb15a97f9553ba441c88 and that
> matches the value given in the sha256sum.txt file for the file of that name.
> 
> So, my question is tri-fold. what's the SHA-256 hash supposed to be for the
> file given when clicking the 'Everything' link on centos.org. 
> then, why is the 'official' download link sending a file that's not listed
> in the hash results. 
> and finally, why is the file sent thusly, different from another
> 'everything' iso allegedly from the same build?
> 

The CentOS-7-x86_64-Everything.iso (without a version) is a symlink to
the 'lastest' Everything iso.  If you look at the sha256sum file, the
last Everything file listed will be the version you use.

Currently that would be:

1c1983b5bd1b5db281ee0b706c8c09f57f107a89a9d8418f60b384ef2b30b8a8
CentOS-7-x86_64-Everything-1702-01.iso

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