upgrading kernel from 2.4 to 2.6

bytez · 10-24-2006, 04:13 PM

My server is currently running on 2.4.21 with CentOS 3.8. I want to upgrade to the latest CentOS 4.4 and 2.6.x kernel. Will this require a OS reload or reinstall of the server? What does it entail? Do I have to backup all the stuff?

According to a tech:

Quote:

Upgrading to the latest centos version will need a reinstallation of the server. This will cause downtime for the server. Please let us know the exact time at which the server should be reinstalled. I would suggest doing it at the non peak time. Please confirm.

When I upgraded from CentOS 3.x to 3.8, it was seamless, no downtime. Even upgrading from 2.4.x kernel to the latest 2.4 only required a reboot. Is there any reason why a reinstall is required?

I just wanted to make sure cause some of the techs are really dumb.

rshaw · 10-24-2006, 04:44 PM

the short answer is that the 2.6 kernel is an entirely different animal than the 2.4 series. updating from 2.4.x to 2.4.x+1 was not really changing all that much.

lots or servers are still running 2.4 or even 2.2, are you upgrading for a reason or just because all the cool kids are doing it?

bytez · 10-24-2006, 04:51 PM

So does it require reinstallation / OS Reload? Everything will be lost?

I'm not upgrading from 2.4.x to 2.4.x+1, Upgrading to 2.6 because 2.4 does not natively support SATA drives and due to the iowait issue with 2.4