Re: No valid device tree blob found!

From: Alexander Leidinger <Alexander_at_Leidinger.net>
Date: Thu, 31 Oct 2024 19:50:46 UTC
Am 2024-10-31 20:43, schrieb Mark Millard:
> lexander Leidinger <Alexander_at_Leidinger.net> wrote on
> Date: Wed, 30 Oct 2024 21:11:52 UTC :
> 
>> I've updated an oracle ampere instance running -current from
>> 2024-09-12-140543 to 2024-10-30-121420 and now I get:
>> ---snip---
>> Hit [Enter] to boot immediately, or any other key for command prompt.
>> Booting [/boot/kernel/kernel]...
>> Loading splash ok
>> No valid device tree blob found!
>> WARNING! Trying to fire up the kernel, but no device tree blob found!
>> ---snip---
>> 
>> I don't see anything in UPDATING about changing the kernel config...
>> what did I miss?
> . . .
> 
> One possibility is this was an ACPI based boot.
> 
> Booting ACPI (such as via EDK2 use with ACPI selected) normally
> produces the messages:
> 
> No valid device tree blob found!
> WARNING! Trying to fire up the kernel, but no device tree blob found!
> 
> I've got a bunch of historical ACPI-based boot logs with that text,
> including this year, not just many prior years. An example
> extraction is:
> 
> . . .
> Loading configured modules...
> 
> /boot/entropy size=0x1000
> 
> /etc/hostid size=0x25
> 
> No valid device tree blob found!
> 
> WARNING! Trying to fire up the kernel, but no device tree blob found!
> 
> ---<<BOOT>>---
> . . .
> 
> 
> The lack of a device tree is the normal case for ACPI based booting.
> I do find this part of the messaging for an ACPI-based boot
> misleading.

It doesn't boot at all. It hangs after this message.
The previous BE boots just fine, so something is broken.

Bye,
Alexander.

-- 
http://www.Leidinger.net Alexander@Leidinger.net: PGP 0x8F31830F9F2772BF
http://www.FreeBSD.org    netchild@FreeBSD.org  : PGP 0x8F31830F9F2772BF