Re: [Xen-devel] Re: [Xen-users] Xen 4.1 Feature Request List

[Jeremy Fitzhardinge <jeremy@xxxxxxxx>]

On 04/07/2010 04:13 AM, Grant McWilliams wrote:
>    1. Figure out why you can't start a VM with a disk image residing
>       in a ramdisk (bug?)
What happens if you do that?

>    1. Nesting
>          1. As silly as this feature sounds it may be why I leave Xen
>             for KVM. This would be useful for teaching management of
>             VMs. A student could have a Dom0 and start up DomUs inside
>             it without each on needing their own physical machine.
Xen nests OK, so long as you're happy running purely PV guests within 
the inner Xen.
>         1.
>
>
>    1. Install PV DomU from CD without FTP/NFS tricks.
>          1. I don't care how it's done but it would be nice. The
>             "install from network" shuffle can pose a complexity for
>             people getting started in Xen. I'm aware that HVM does
>             this because of it's use of Qemu but it would be nice
>             everywhere. Maybe as Xen moves to Hybrid VMs instead of
>             PV/HVM this will no longer be an issue.
What I typically do is install systems as HVM, then just boot them as PV 
later on.  For Fedora installs, at least, it pretty much just works 
because they avoid having any direct device references for filesystems, 
etc.  It's a bit more fiddly without having HVM available.
    J

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