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To: Jeroen van der Ham <jeroen@dckd.nl>
Subject: Re: Upgrading XENHVM 9.0 to 9.1
References: <C20E2886-F631-4A64-B351-3763BB8AE8A3@dckd.nl>
Date: Thu, 24 Jan 2013 07:41:39 -0600
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On Wed, 23 Jan 2013 15:48:29 -0600, Jeroen van der Ham <jeroen@dckd.nl>  
wrote:

> Hi,
>
> Today I started with an upgrade process of my VPS which has been running  
> 9.0 XENHVM almost a full year. I followed the process as outlined on the  
> Handbook[1]. I may have made a mistake in placing back the right old  
> kernel, but a new GENERIC kernel did not get installed.
>
> I was able to boot into the 9.1 system using my old 9.0 XENHVM kernel. I  
> have been trying to fix this, but I keep running into problems:
>
> - I manually downloaded and extracted the 9.1 GENERIC kernel. Booting  
> from that results in a rootmount mismatch (ada0 vs ad0). Just renaming  
> it in /etc/fstab does not seem to be enough, what else would I need to  
> do?

Yes, the GENERIC kernel uses adaX and the XENHVM kernel uses adX. It  
shouldn't be a problem to just change it in the fstab though. I've not yet  
had problems running 9.1 with XENHVM yet.

>
> - I manually built a new 9.1 XENHVM kernel. Booting from that results in  
> the message: "pudna: fpcurthread == curthread xx times" scrolling by.  
> What can I do to fix that?
>

I've not seen this message yet either. Can you provide more details of the  
Xen environment you're hosted on?

> Is there a problem in continuing to run the 9.0 XENHVM kernel with the  
> 9.1 system?
>

This would not be advised. It *may* work, but be warned that you may run  
into strange issues.