WebDec 2, 2024 · grub-install simply copies the binaries from /usr/lib/grub to /boot/efi, and configures the EFI system variables to point there. Just mount the ESP in /boot/efi and run grub-install. It still requires a device argument for backward compatibility, but it is ignored so you can specify anything you want. WebAug 12, 2024 · Do a grub-install --target=i386-pc and then do another grub-install --target=x86_64-efi on the same grub partition, so you use only one grub.cfg for both boot modes How it boots: a) booting form old BIOS, will load MBR, then Stage2 of grub form BIOS_grub partition, then core.img from Grub2 partition
8.8. Configuring the Bootloader - Debian
WebJan 19, 2014 · How about installing grub-efi or grub-efi-amd64 (of cource, on the installed debian)? Code: Select all apt-get update apt-get install grub-efi-amd64 But I do not know about grub-efi well. (I have NO pc with uefi.) You can use also boot-repair. WebNov 8, 2024 · So I booted from the flash drive with the debian installer, I ran the rescue shell, asked wether or not with root, I didn't know so I went without root. I did this: Quote: boot your Debian installation media into a rescue mode shell prompt mount /dev/sda5 /mnt mount -o bind /dev /mnt/dev mount -o bind /sys /mnt/sys mount -o bind /proc /mnt/proc chronic spontaneous urticarial rashes
UEFI - Debian Wiki
WebShell> bcfg boot add 0 FS0:\EFI\GRUB\grubx64.efi "GRUB" where FS0: is the mapping corresponding to the EFI system partition and \EFI\GRUB\grubx64.efi is the the from the --bootloader-id from the grub-install command above. This will temporarily add a UEFI boot option for the next boot to get into Arch. WebFeb 24, 2024 · Recreate a partition using GParted in the "unallocated" section created by deleting the original EFI partition. Select FAT32, manage flags and set the "boot" flag. Use blkid command to find the UUID of new partition. Edit /etc/fstab so that /boot/efi will be mounted using the new UUID. Mount /boot/efi. WebApr 13, 2024 · This will install a version of grubx64.efi that has all relevant GRUB modules built-in (since Secure Boot will prevent GRUB from loading any modules: GRUB modules are not PE-COFF binaries but ELF binaries, so the Secure Boot firmware cannot validate them) which is signed by Debian, and shimx64.efi which is signed by Microsoft. Both of … chronic sprain