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 -- spambait [log in to unmask] [log in to unmask] -- Advice http://webfoot.com/advice/email.top.php http://www.catb.org/~esr/faqs/smart-questions.html http://support.microsoft.com/kb/555375 You cannot reply off-list:-)