Xen cpu requirements

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On Wed, 14 Jul 2010, David Dyer-Bennet wrote:

>> That's the entry. But reports are some systems need to be 
>> fully powered off for the entry to be effectively changed - 
>> some BIOSes evidently are flakey about it.
>
> Now *there's* something I wouldn't have thought of trying on my own.
>
> Okay, I can get physical access to the system, and probably even pull its
> plugs (I'm not really used to dealing with the complex cabling mess at the
> back; I'm mostly a software developer with some sysadmin duties for the
> small number of Linux boxes in this Windows shop).

Another thing a part time sysadmin might not consider is 
applying BIOS updates, if any, for that chassis, and as 
applicable sub-components.  Dell is quite good about issuing 
these, while a unit remains in production, and sometimes 
continues to issue them while it remains in support, 
particularly for the PowerEdge series

I get strange looks from my techs when I insist they do this 
when strange hardware problems are being manifested.  All I 
can say is: 'but this may work'  It worked last week 
with a Tyan motherboard dom0 that was throwing random ram 
errors  :)

-- Russ herrold
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