Comments on: Upgrade CentOS 4.8 to 5.3

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Fri, 27 Aug 2010 08:28:10 +0000

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By: Ryan M.

Ryan M. — Fri, 28 May 2010 16:46:49 +0000

This works perfectly fine still even going to CentOS 5.5. Of course the kernel that this installs is from 5.3 but it still has no issues as such, as once you get to the end of the howto, that will in turn get replaced with the latest 5.5 kernel.

Tony Kammerer:
Hey Ryan, I ran across the following copy of your howto:

http://planet.admon.org/howto/update-centos-4-to-centos-5-remotely/

I know your article was published first but cannot verify since your articles have no publish dates (which drives me nuts).

I haven’t yet tried this but have a few candidates for it so may soon.

By: Tony Kammerer

Tony Kammerer — Fri, 28 May 2010 13:13:18 +0000

Nevermind about publish dates, I see it now

[QUOTE]
This entry was posted by Ryan M. on October 20, 2009 at 3:10 am, and is filed under HowTo
[/QUOTE]

By: Tony Kammerer

Tony Kammerer — Fri, 28 May 2010 13:11:41 +0000

Hey Ryan, I ran across the following copy of your howto:

http://planet.admon.org/howto/update-centos-4-to-centos-5-remotely/

I know your article was published first but cannot verify since your articles have no publish dates (which drives me nuts).

I haven’t yet tried this but have a few candidates for it so may soon.

By: Bruce

Bruce — Sat, 22 May 2010 03:14:09 +0000

many many thanks, this project with a little tweaking made it possible for to install centos 5.4 and BlueOnyx on to my Cobalt RaQ550
I intend to publish my method and will use some of this post and I will give credit to you
once again many many thanks

By: Ricardo J. Barberis

Ricardo J. Barberis — Mon, 26 Oct 2009 19:11:02 +0000

Hi Ryan,

You’re right, I forgot udev and similar can/will cause issues and prevent booting.

Regards

By: Ryan M.

Ryan M. — Mon, 26 Oct 2009 18:31:53 +0000

Ricardo,
Rebooting the system to the new kernel is done last as it is a major release change from CentOS 4.x’s 2.6.9 kernel tree to 5.x’s 2.6.18 kernel tree. Some software such as udev may not operate properly on the new kernel till all associated packages are updated to 5.x versions , this can leave the server in an unusable state if rebooting before that point or lock it up on boot during the udev initialization process.

By: Ricardo J. Barberis

Ricardo J. Barberis — Mon, 26 Oct 2009 18:15:17 +0000

One more thing: shouldn’t you reboot into the new 2.6.18 kernel before removing the 2.6.9 versions?

I know it’s not necessary, but removing the currently running kernel gives me the creep

By: Ricardo J. Barberis

Ricardo J. Barberis — Mon, 26 Oct 2009 18:11:09 +0000

Hi, just a small thing, I think rpm -q should be rpm -qi as you intend to view the info of the package and not only its name. At least on 5.x it works that way, I haven’t tried 4.x.

Also, users might want to reinstall some of the packages uninstalled during the update process, so they should take note of what they remove.

Regards,

By: george

george — Mon, 26 Oct 2009 15:28:35 +0000