my guess is I needed: \EFI\boot\bootx64.efi qemu... no change just to be sure, I put it everwhere:
$ find /tmp/mk_hd_grub/img -iname *.efi /tmp/mk_hd_grub/img/bootnetx64.efi /tmp/mk_hd_grub/img/boot/grub/grubx64.efi /tmp/mk_hd_grub/img/boot/grub/bootx64.efi /tmp/mk_hd_grub/img/boot/grubx64.efi /tmp/mk_hd_grub/img/boot/bootx64.efi /tmp/mk_hd_grub/img/EFI/BOOT/grubx64.efi /tmp/mk_hd_grub/img/EFI/BOOT/bootx64.efi /tmp/mk_hd_grub/img/EFI/grubx64.efi /tmp/mk_hd_grub/img/EFI/bootx64.efi /tmp/mk_hd_grub/img/grubx64.efi /tmp/mk_hd_grub/img/bootx64.efi I need modules to boot the installer grubnetx64-installer.efi.signed has installer in the name, but I'm guessing that isn't my problem, yet. On Tue, Mar 10, 2026 at 7:07 AM Steve McIntyre <[email protected]> wrote: > Hi Carl! > > On Mon, Mar 09, 2026 at 12:21:40PM -0500, Carl Karsten wrote: > >I am trying to replace syslinux with grub to support efi on hd-media > >some background: > > > https://salsa.debian.org/installer-team/debian-installer/-/merge_requests/7# > >note_75072 > > > >In poking around, I got lost. I suspect I need help with grub.conf, where > to > >put it and what goes in it. > > > >I wrote a script that builds an image, but doesn't ... boot grub I think? > > > >I see gen-hd-image and efi-image which seems like things I should use. > > > >Here is my failing attempt > > > https://salsa.debian.org/carlfk-guest/debian-installer/-/blob/hd-grub/build/ > >util/mk_hd_grub.sh > > > >I test with qemu -bios OVMF.fd > >I end up at an efi shell > > > >UEFI Interactive Shell v2.2 > >EDK II > >UEFI v2.70 (Debian distribution of EDK II, 0x00010000) > >Mapping table > > FS0: Alias(s):HD1a0b:;BLK2: > > PciRoot(0x0)/Pci(0x1,0x2)/USB(0x0,0x0)/HD(1,MBR,0x69AD6B31) > > BLK0: Alias(s): > > PciRoot(0x0)/Pci(0x1,0x1)/Ata(0x0) > > BLK1: Alias(s): > > PciRoot(0x0)/Pci(0x1,0x2)/USB(0x0,0x0) > >Press ESC in 4 seconds to skip startup.nsh or any other key to continue. > >Shell> > > If you're seeing this, then you don't have a bootloader in the > removable media path [1]. You're not even getting as far as loading > grub here. You'll need to copy one of the grub binaries from > grub-efi-$ARCH-signed into place. There's a selection of different > grub binaries in that package to choose from, depending on what > modules you want included. > > [1] https://wiki.debian.org/UEFI#Booting_from_removable_media > > -- > Steve McIntyre, Cambridge, UK. > [email protected] > Into the distance, a ribbon of black > Stretched to the point of no turning back > > -- Carl K
