[CentOS] Hot upgrade from 5.2 Centos to 5.7 Centos

[Ljubomir Ljubojevic]

Vreme: 10/19/2011 12:18 AM, John R Pierce piše:
> On 10/18/11 3:02 PM, Vinay Nagrik wrote:
>> I am installed some application running on top of Centos 5.2 OS and these
>> applications are running fine.  However, we are thinking of upgrading our
>> 5.2 Centos to 5.7 (hot upgrade).  That is we want to upgrade from 5.2 Centos
>> to 5.7 Centos and not disturb the applications.
>>
>> Is it possible?  Could someone please help.
>
> assuming those applications didn't replace system files that are under
> RPM management, then a yum update should be just fine.
>
> I recently upgraded a system that had been left at 5.4 a little too
> long, and found I had to update yum and some other things first, before
> the full yum update would work, I also had to do a yum cleanall after
> that update of yum itself.
>
> do watch the output of the yum update for `rpmnew` files, and diff each
> of these with your system files, and merge the changes manually (I
> usually copy my stuff from the old file to the rpmnew file, then mv
> x.rpm x...)   this is typically .conf files.
>
>

Shouldn't he run "yum upgrade" instead of update? upgrade will take into 
account any possible obsoletes.

-- 

Ljubomir Ljubojevic
(Love is in the Air)
PL Computers
Serbia, Europe

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