Jan Iven wrote:
> On 17/01/08 02:45, John Summerfield wrote:
>> Jan Iven wrote:
> ..
>>> SL4 can then run as a domU, with some caveats (cannot mix 32/64 bit
>>>  doms).
>>
>> I'm not sure about that. I run 64-bit Fedora 8 on Intel, and run
>> several 32-bit guests.
> 
> Sorry - I was unclear and perhaps wrong.  As stated on
> http://www.linuxtopia.org/online_books/centos5/centos_5_xen_virtualization/centos5_ch-virt-hw-support.html 
> 
> 
>> With Red Hat Virtualization, 32-bit hosts runs only 32-bit
>> paravirtual guests. 64-bit hosts runs only 64-bit paravirtual guests.
>> And a 64-bit full virtualization host runs 32-bit, 32-bit PAE, or
>> 64-bit guests. A 32-bit full virtualization host runs both PAE and
>> non-PAE full virtualization guests.
> 
> This could have changed with 5.1 -  Red Hat claims on
> http://www.europe.redhat.com/rhel/virtualization/ that 5.1 now has
> 
>> # The ability to run 32-bit para-virtualized guests on x86-64 systems 
>> running in 64-bit mode.
> (I guess they are talking about the dom0 here)

Well, I did mention my experience is on F8:-) I've only one system with 
hardware virtualisation, and its first level OS is Fedora 8.

I use it to answer questions such as "Can I take this windows system run 
  it on different hardware without it barfing because it's become 
unactivated?" and to similarly play with Windows domains.

I seem to have an inordinate array of problems:-( Fortunately, Fedora 
has two virtualisation technologies, there's also KVM, and sometimes one 
works when the other does not.




-- 

Cheers
John

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