version redhat linux

Why does /etc/redhat-release , uname --version and rpm -qa '*release*' all give different results
Asle KibsgaarddbaAsked:
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MazdajaiCommented:
/etc/redhat-release should match the package version of redhat-release-server-*.rpm

uname provides GNU or kernel version and has no relation to redhat version.
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Seth SimmonsSr. Systems AdministratorCommented:
uname --version provides the version of the uname package specifically

redhat-release* package (part of your rpm query) should match the version you see in /etc/redhat-release
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Asle KibsgaarddbaAuthor Commented:
Thanks Mazdajai and Seth!

This is the output from the different commands:
/etc/redhat-release : 5.8
uname --Version: 5.97
rpm -qa '*release*:5.8.0.3

But it looks like you disagree on the uname command , what is correct , any other references since the man page does not explain this very well from my point of view.
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MazdajaiCommented:
On redhat perspective, if you need OS verions, the most accurate place is /etc/redhat-release, generated from the redhat-release-server package. (yum info redhat-release-server)

There isn't much documentation for uname. It is part of the gnu coreutils that provide kernel, hostname or processor architecture information that has been around for decade.
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Seth SimmonsSr. Systems AdministratorCommented:
it's not a disagreement
mazdajai explained what it does; the command you specified shows only the version of the package

your RHEL 5.8 distribution has uname version 5.97
many packages have newer versions with new major releases of the operating system
i have a 6.5 system with uname version 8.4

as was mentioned, there isn't much to uname - only a few switches provided kernel/architecture information
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Asle KibsgaarddbaAuthor Commented:
Thanks , I say both solutions equally good.

Thanks :-)
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