Mailinglist Archive: opensuse-bugs (4250 mails)

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[Bug 1018741] after Xen 4.7 -> 4.8 upgrade, Xen PVHVM/UEFI guests fail to boot; hang @~ OVMF
  • From: bugzilla_noreply@xxxxxxxxxx
  • Date: Wed, 11 Jan 2017 04:47:49 +0000
  • Message-id: <>

--- Comment #30 from Gary Ching-Pang Lin <glin@xxxxxxxx> ---
(In reply to lists dev from comment #28)
startup.nsh is for UEFI shell, and it only works when BDS boots UEFI shell.
For the one-time boot, enter the "Boot Maintenance Manager" and choose "Boot
From File" to find the specific efi image. To create a permanent boot
option, choose "Boot Options" -> "Add Boot Option". You can change the boot
order with "Boot Options" -> "Change Boot Order". But it seems your guest
has problem to save NvVars correctly, I'm not sure if the boot option will
be saved.

In Dom0, I can (still) easily set 'EFI Shell' to Boot Order == 0000.

With startup.nsh in place, on boot it does -- as you explain -- fall through
to startup.nsh after ~4 sec delay. Works well if needed.

In the Guest, I am not able to get the boot option to stick.

Is it possible, from within chroot, to write a correct set of NvVars
directly, and get the guest-boot process to use them?

AFAIK, there is no such tool.

I can certainly use efibootmgr to write to file, but am not clear if that's
sufficient, or what the recommended options should be.

If the guest can boot to OS, efibootmgr is recommended to change the boot
options and boot order.

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