yum upgrade

Reindl Harald h.reindl at thelounge.net
Fri Mar 29 16:55:22 UTC 2013

Am 29.03.2013 16:39, schrieb Timothy Murphy:
> Reindl Harald wrote:
>>> CentOS seems able to do it ...
>> No 5.1 to 5.2 is NOT at dist-upgrade
> 1. CentOS has "minor upgrades" at more or less the same frequency
> that Fedora has "major upgrades", 
> so to the user they are more or less the same.


as long you do not understand the difference between RHEL
and Fedora stop to discuss because you do not know anything
about what you are speaking

on RHEL/CentOS you have 100% ABI compatibility over 10
years, you can even load closed source kernel-drivers
after ANY kernel-upgrade because the kernel-API does
not change as also any other ABI/API does not change

> 2. I don't recall that I had any problems upgrading from CentOS 5 to 6.
> I followed the simple advice given, and it worked exactly as stated.

only by luck and only if you use a very very limited
set of packages in your setup

RHEL 5 is based on Fedora 6
RHEL 6 is based on Fedora 12/13

so you jump from F6 to F12, nobody supports this
with RHEL7 this will be impossible because RHEL7
will be based on F18-F20 and make all this switches
with one release:

* sysvinit -> systemd
* grub -> grub2
* UsrMove

> 3. I looked at the two document mentioned about upgrading Fedora:
> https://fedoraproject.org/wiki/Upgrading_Fedora_using_yum#Upgrading_Fedora_using_yum_directly
> https://fedoraproject.org/wiki/FedUp#How_Can_I_Upgrade_My_System_with_FedUp.3F
> I found both of them rather confusing, and difficult to follow

what is difficult in

there is a idiot-proof 1-2-3-4 instruction for each specific jump
well, you need to understand what the changes between releases are
dooing to understand the steps and why the order matters, but if
you are not willing to learn this things and can not upgrade a
Fedora installation you have two choices left

* re-install from scratch
* choose a distribution which fits your ability to flollow

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