[CentOS] is centos update safe

Fri Jun 27 11:14:16 UTC 2008
Rudi Ahlers <Rudi at SoftDux.com>

Mogens Kjaer wrote:
> Kai Schaetzl wrote:
>> You are right, there is a difference:
>>
>> upgrade
>>     Is the same as the update command with the --obsoletes flag set.
>>     See update for more details.
>
> If the /etc/yum.conf file contains:
>
> obsoletes=1
>
> yum update will be the same as yum upgrade.
>
> The yum.conf file will have this line unless manually removed
> or you've upgraded from a previous CentOS release that didn't
> have it. I guess it has to be very old then, the line is present
> in CentOS 4 and 5...
>
> Mogens
>
Which is why yum upgrade is recommended, yum update may or may not work 
for everyone, depending on this flag

-- 

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Rudi Ahlers
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