If you to boot a non-PAE para-virtualized guest you will see the error message below. It basically indicates you are trying to run a guest kernel on your Hypervisor which at this time is not supported. Red Hat Virtualization presently only supports PAE and 64 bit para-virtualized guest kernels.
# xm create -c va-base
Using config file "va-base".
Error: (22, 'Invalid argument')
[2006-12-14 14:55:46 xend.XendDomainInfo 3874] ERROR (XendDomainInfo:202) Domain construction failed
Traceback (most recent call last):
File "/usr/lib/python2.4/site-packages/xen/xend/XendDomainInfo.py",
line 195, in create vm.initDomain()
File "/usr/lib/python2.4/site-packages/xen/xend/XendDomainInfo.py",
line 1363, in initDomain raise VmError(str(exn))
VmError: (22, 'Invalid argument')
[2006-12-14 14:55:46 xend.XendDomainInfo 3874] DEBUG (XendDomainInfo:1449) XendDomainInfo.destroy: domid=1
[2006-12-14 14:55:46 xend.XendDomainInfo 3874] DEBUG (XendDomainInfo:1457) XendDomainInfo.destroyDomain(1)
If you need to run a 32 bit or non-PAE kernel you will need to run your guest as a fully-virtualized virtual machine. The rules for hypervisor compatibility are:
-
para-virtualized guests must match the architecture type of your hypervisor. To run a 32 bit PAE guest you must have a 32 bit PAE hypervisor.
-
to run a 64 bit para-virtualized guest your Hypervisor must be a 64 bit version too.
-
fully virtualized guests your hypervisor must be 32 bit or 64 bit for 32 bit guests. You can run a 32 bit (PAE and non-PAE) guest on a 32 bit or 64 bit hypervisor.
-
to run a 64 bit fully virtualized guest your hypervisor must be 64 bit too.
