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to update from RHEL 6.0 to 6.8 anything needed other than "yum update"?

Posted on 2016-10-24
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Last Modified: 2016-11-01
to update from RHEL 6.0 to 6.8 anything needed other than "yum update"?  Is so, what else?  

And would it update the /etc/redhat-release file?  Or does that file just show what version was installed to begin with?
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Question by:Xetroximyn
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arnold earned 250 total points
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Nothing else is needed, but you should test any non vendor provided packages (self compiled, including driver modules if any) as well as make sure the settings are such that the prior kernel is not deleted.

so if the system does not boot after the update, you have a fall back by choosing the current kernel to boot the system..

The /etc/redhat-release will be updated with the kernel and other relevant packages are patched.
you could do it in stages, yum list update > /tmp/file
run updates based on some items, ......
The issue deals with how many updates have to be retrieved and then processed. The data transfer will not be altered, but the means by which you connect and duration of applying all 200-300 updates, might take as long that could sever connection.
For long run updates, and to avoid disconnect of session, use screen within which to run yum update.
Should the session sever, the screen process will continue to maintain yum update run and can be resumed using
screen -RRD on reconnect under the same user login.
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by:rindi
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You will need a subscription with Red-Hat, or the system must still be within the trial period. Otherwise you don't have access to the Red-Hat repositories where the updates are downloaded from.
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by:Xetroximyn
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Thanks!  and Oops... Im so used to using RHEL, I just typed without thinking.  This server is actually CentOS.  So I assume all the same applies?  I'm just on my own if something goes wrong?  (but I dont need subscription to update)

And when it's done redhat-release should show 6.8?

Thanks!
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by:arnold
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yes.
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by:gheist
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You just upgrade redhat-release and get cosmetic fix with version number.

Correct long-range update is
yum upgrade
(which handles package deprecation in addition to updates)
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by:Xetroximyn
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Oh - so I should use yum upgrade instead of yum update?

Anyone have any idea how likely it is that anything would "Break"?  

Like is httpd in 6.0 way different from 6.8 such that the config would need to be redone, etc?
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by:gheist
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Read all possible release noted
6.1
6.2
...
6.8
Apache will not change (mod_nss has changed, mod_ssl will keep working as it was)
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