[Fedora-xen] All the ways go to Error: (22, 'Invalid argument')

[master at bradleyland.com]

> Good afternoon,
>
> I've installed Xen on a Fedora 6. The xend process are running, all
> ok, but no matter what or how I try to create a new domain, I got the
> useless error message "Error: (22, 'Invalid argument')".
>
> On my last try, I've populated the directory /vm/fc5.base with a base
> installation of Fedora Core 5. So, I exported that directory on NFS,
> inserting the following line on /etc/exports
>
> /vm/fc5.base    *(rw,no_root_squash)
>
> and running exportfs -afr to update NFS server.
>
> Afer, I created a config file on /etc/xen/fc5base with the following
> content:
>
> # General
> kernel = "/vm/fc5.base/boot/vmlinuz-2.6.18-1.2257.fc5xenU"
> ramdisk = "/vm/fc5.base/boot/initrd-2.6.18-1.2257.fc5xenU.img"
> memory = 128
> root = "/dev/nfs"
> nfs_server = "127.0.0.1"
> nfs_root = "/vm/fc5.base"
>
> # Network
> netmask = "255.255.255.0"
> gateway = "10.1.0.1"
> hostname = "doutorx.niteroi.unimed"
>
> At last, running the following command
>
> # xm create fc5base vmid=100
>
> I got that message error:
>
> Error: (22, 'Invalid argument')
>
> I have tried other ways to create a new domain from scratch, following
> instrunctions on the xm man page, but, I repeat, every try result in
> that error message.
>
> Some idea?
>
> Thanks,
>
> Davidson Paulo
>
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>

I believe that error indicates the dom0 and domU kernels are mismatched
PAE vs. non-PAE. All of the FC6 kernels I thought were PAE enabled now. An
FC5 kernel is probably non-PAE in any case. Just use the dom0 kernel as
the domU kernel.