Dear colleagues!

My server is an opteron 280 (x86_64) running with 4GB memory. Install distributive Fedora Core 6 (x86_64) with support of system virtualized XEN.
#uname -a
Linux srv-bd3.mup-uga.vrn.ru 2.6.18-1.2849.fc6xen #1 SMP Fri Nov 10 12:57:36 EST 2006 x86_64 x86_64 x86_64 GNU/Linux

I would like to establish guest OS i386. Too FC6. At installation the mistake stands out:
[2006-12-03 19:54:39 xend 4116] INFO (image:214) configuring linux guest
[2006-12-03 19:54:39 xend 4116] INFO (image:232) setting use_graphics
[2006-12-03 19:54:39 xend 4116] DEBUG (balloon:127) Balloon: 524316 KiB free; need 512000; done.
[2006-12-03 19:54:39 xend 4116] INFO (image:138) buildDomain os=linux dom=8 vcpus=2
[2006-12-03 19:54:39 xend 4116] DEBUG (image:193) dom = 8
[2006-12-03 19:54:39 xend 4116] DEBUG (image:194) image = /var/lib/xen/vmlinuz.Y4RxAr
[2006-12-03 19:54:39 xend 4116] DEBUG (image:195) store_evtchn = 1
[2006-12-03 19:54:39 xend 4116] DEBUG (image:196) console_evtchn = 2
[2006-12-03 19:54:39 xend 4116] DEBUG (image:197) cmdline = method=http://192.168.0.252/install/fc6/i386
[2006-12-03 19:54:39 xend 4116] DEBUG (image:198) ramdisk = /var/lib/xen/initrd.img.pXzZUK
[2006-12-03 19:54:39 xend 4116] DEBUG (image:199) vcpus = 2
[2006-12-03 19:54:39 xend 4116] DEBUG (image:200) features =
[2006-12-03 19:54:39 xend.XendDomainInfo 4116] ERROR (XendDomainInfo:202) Domain construction failed
Traceback (most recent call last):
File "/usr/lib64/python2.4/site-packages/xen/xend/XendDomainInfo.py", line 195, in create
vm.initDomain()
File "/usr/lib64/python2.4/site-packages/xen/xend/XendDomainInfo.py", line 1363, in initDomain
raise VmError(str(exn))
VmError: (22, 'Invalid argument')

If to install guest OS FC6 (x86_64) install and run is normal. Whether there is an opportunity to install as guest FC6 (i386) on FC6 (x86_64)?