On Thu, Jun 25, 2026 at 09:19:49AM +0200, Vitaly Zaitsev via devel wrote: > On 25/06/2026 08:59, Gerd Hoffmann wrote: > > There are reasons why this is model is not used any more and > > why UEFI firmware is able to read FAT filesystems. > > UEFI firmware can read any file system for which it has drivers.
Sure. The only thing you can depend on is FAT though, that is present in upstream edk2 and turned on pretty much everywhere. Some OEMs also ship NTFS. The edk2-platforms upstream repo also has an ext4 driver (packaged in edk2-ext4.rpm). > Fedora simply needs to sign the efifs package with the Fedora Secure > Boot key. That is not as easy as it sounds. I think the last thing you want have is an secure boot bypass due to a bug in a fedora-signed EFI filesystem driver. BTW: grub could also register /boot as filesystem in UEFI. With that systemd-stub could load extensions (via grub driver) even if /boot is not FAT. take care, Gerd -- _______________________________________________ devel mailing list -- [email protected] To unsubscribe send an email to [email protected] 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/[email protected] Do not reply to spam, report it: https://forge.fedoraproject.org/infra/tickets/issues/new
