Re: [Xen-users] Xen guest's bios=ovmf EFI vars are not persistent across guest reboot ?

[suse.dev@xxxxxx]

On Fri, Feb 26, 2016, at 07:33 AM, Wei Liu wrote:
> On Wed, Feb 24, 2016 at 05:40:32PM -0800, suse.dev@xxxxxx wrote:
> [...]
> > Iiuc, these efi vars, and their (non)persistence are the job of the bios, 
> > here 'ovmf'.
> > 
> > How do I set the Xen guest's ovmf-bios efi vars so
> > 
> > (a) the list is trimmed to only the needed/correct items,
> > (b) the right order is set,
> > (c) any changes I make are persistent across Guest reboots
> > 
> 
> Unfortunately Xen needs to be taught on how to persist those eif vars.
> Nobody is working on that at the moment.
> 
> As said in other email, we play a trick in our test system to make ovmf
> load grub automatically.

Fwiw, I'm not using grub anymore in the Guest.  I'm using systemd-boot as the 
UEFI loader instead.  It's simpler and lighter.

I'll eventually switch to using it in Dom0 too.  But for now the Dom0 OS 
(opensuse) has a systemd that's too old.  So i'll have to wait, figure out how 
to upgrade just systemd, or switch to a different OS.

And IIUC I don't thing any of this effect matters to the EFI vars' persistence.


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