Fedora 26 UEFI/EFI Rescue Boot

asked 2017-10-24 01:58:29 -0500

neik gravatar image

I need to rescue an unbootable UEFI Fedora 26 system.

I have booted from the DVD, and used the rescue choot environment. I have a GPT disk with a small FAT32 ESP partition of type EF00.

I've run:

dnf reinstall grub2-efi grub2-efi-modules shim
grub2-mkconfig -o /boot/efi/EFI/fedora/grub.cfg

as described here: https://fedoraproject.org/wiki/GRUB_2

The grub.cfg file looks plausible. The system boot menu shows a "Fedora" entry, but it is not actually bootable.

What else do I need to do?

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Comments

How exactly is it failing at boot? Maybe initramfs image or linux image are missing (ones referred in the grub as linuxefi and initrdefi)

masteroman gravatar imagemasteroman ( 2017-10-25 03:30:32 -0500 )edit

Where did you run these commands? Have you chroot'ed to the installed Fedora system before running them?

hedayat gravatar imagehedayat ( 2017-10-28 15:32:20 -0500 )edit