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From: "Gerd Hoffmann via groups.io" <kraxel=redhat.com@groups.io>
To: devel@edk2.groups.io, rebecca@bsdio.com
Cc: ardb+tianocore@kernel.org, Ruiyu Ni <ruiyu.ni@intel.com>,
	 Ray Ni <ray.ni@intel.com>
Subject: Re: [edk2-devel] OVMF vs ArmVirt: what to do when unable to boot (print a message or drop into UiApp)
Date: Mon, 16 Jun 2025 12:54:37 +0200	[thread overview]
Message-ID: <yxvoltqzxs5afz6j64p2fm3extn47ghecfuqlpjcadfon2ej2e@irdok5kgzmkj> (raw)
In-Reply-To: <13af1623-2925-4017-8eb4-2d8775e2b7ff@bsdio.com>

On Sat, Jun 14, 2025 at 08:44:35PM -0600, Rebecca Cran wrote:
> I've been testing some UI changes in OVMF and was surprised when instead of
> launching into the UiApp I got a message:
> 
> BdsDxe: No bootable option or device was found
> BdsDxe: Press any key to enter the Boot Manager Menu

ovmf prints the boot attempts to the console, via
OvmfPkg/Library/PlatformBmPrintScLib/, for better diagnoses of boot
failures.  This 'wait for keypress' allows to read those messages before
the screen gets overwritten by whatever is launched next.

recent update (new in 2025-05) is to launch the boot menu app instead of
efi shell or firmware setup app, so when something goes wrong the user
gets a menu with choices instead of being dropped somewhere
automatically.  This also allows the host (i.e. qemu) to allow or deny
access to efi shell / firmware setup.

take care,
  Gerd



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      reply	other threads:[~2025-06-16 11:07 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-06-15  2:44 [edk2-devel] OVMF vs ArmVirt: what to do when unable to boot (print a message or drop into UiApp) Rebecca Cran
2025-06-16 10:54 ` Gerd Hoffmann via groups.io [this message]

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