On 8/29/2012 9:05 AM, Yeechang Lee wrote:
Since yum isn't available for upgrades, the way I recently upgraded
two CentOS 5 systems was:

During the last major version change (4 to 5), even through it was officially "unsupported" I was able to just use the installer to do the upgrade.

I would make a list of the running apps on a server. I would run the CentOS 5 installer on a host and it would happily "upgrade" the host.

However, my next step would be to go through and manually check each application since the upgrade may or may not have been handled automatically. The installer would have backed up the old config files. For new versions of applications I had to figure out how to get the new ones running.

I have a CentOS 5 server I'm going to try this process on.

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