Re: [Xen-users] booting fails after xen upgrade

[Pasi Kärkkäinen <pasik@xxxxxx>]

On Mon, Nov 16, 2009 at 03:40:02PM +0900, Dongkyu Lee wrote:
> We are running xen on more 50 servers and recently updated xen from 
> 3.1.3 to 3.4.1.
> Gitco yum repository has been used for updating. The problem is that 
> more than 50% of servers failed to boot after updating xen.
> We followed exactly same procedure to update xen version on every server 
> but some servers were successfully
> updated and others failed (about half and half). All xen and system log 
> files did not show any error message.
> 
> Physical Server Model: IBM x3650
> Operating System: CentOS 5.3
> Raid Controller: IBM ServeRAID-MR10i SAS/SATA Controller
> 
> Steps we followed for updating xen
> 1. edit yum repository (add gitco repository)
> 2. remove current virtualization package (yum groupremove)
> 3. install updated xen version (yum groupinstall)
> 4. edit menu.list
> 5. reboot
> 
> It is hard to distinguish that it is caused from hardware, Linux Kernel, 
> or Xen.
> Would you guys give me any suggestions that we should check to find out 
> which caused this problem?
>

Set up a serial console and check/log what's happening..

-- Pasi

> Thank you so much in advance.
> 
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