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 _______________________________________________ devel mailing list -- devel@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe send an email to devel-leave@xxxxxxxxxxxxxxxxxxxxxxx Fedora Code of Conduct: https://docs.fedoraproject.org/en-US/project/code-of-conduct/ List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines List Archives: https://lists.fedoraproject.org/archives/list/devel@xxxxxxxxxxxxxxxxxxxxxxx Do not reply to spam on the list, report it: https://pagure.io/fedora-infrastructure
