On Monday, 18 April 2022 at 10:13, Thomas Schmitt wrote:
Hi,
Dominik 'Rathann' Mierzejewski wrote:
> - same machine USB media (written to whole device using dd)
> Boot fails with "Operation system not found" error.
(Looks like my optimism was somewhat premature.)
I wonder from where this message comes. Was it really "Operation system"
and not "Operating system" ?
Yes, that's the exact message. It might be coming from BIOS.
In the cleartext strings of boot-grub2-f36.iso i find no matches for
the two word string. Searching "peration" yields mostly lines with the
word "Microsoft" which i assume stem from the EFI secure boot equipment.
Searching for "perating" i find a few matches.
None looks like a possible component of the quoted message.
So either i looked for the wrong text snippets, or the message comes
from the compressed files in the ISO, or it comes from the firmware.
If it comes from the compressed files, then i assume that GRUB was
found and started. Do you see any message that stems from GRUB ?
None that I can catch. Something might be getting printed to the screen
and then cleared before I can see it.
> Same USB stick boots fine on another machine (UEFI+SecureBoot),
so
> the medium is fine.
Just to be clear (and just because i cannot get a grip on the problem):
Is this the same USB stick with same ISO image on it ?
Yes, the exact same USB stick works on another machine in UEFI mode.
I'll try to dig up my other BIOS-only machine and try it there.
More far fetched:
Can you build a grub-mkrescue ISO from a GRUB development installation
for legacy BIOS and EFI ?
I don't mean a boot installation of GRUB but rather installed packages
equivalent to what Debian offers as:
grub-common grub-pc-bin grub-efi-amd64-bin
(Sorry, i failed to find the Fedora equivalent of
https://tracker.debian.org/pkg/grub2
where i could learn about the equivalent package names.)
https://src.fedoraproject.org/rpms/grub2
With the necesseray GRUB packages installed, do
mkdir minimal
touch minimal/empty-file.txt
grub-mkrescue -o output.iso minimal
If such an "output.iso" can be built, then it would be interesting to
know whether it boots to a "grub> " prompt (more it cannot do without
any payload).
Thanks. I'll try that and report back.
Regards,
Dominik
--
Fedora
https://getfedora.org | RPM Fusion
http://rpmfusion.org
There should be a science of discontent. People need hard times and
oppression to develop psychic muscles.
-- from "Collected Sayings of Muad'Dib" by the Princess Irulan