Fedora 25: grub2-efi uses wrong configuration file

asked 2017-07-30 04:23:05 -0600

octied
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I recently had to upgrade the MBR to GPT on my boot drive and I also installed grub2-efi, since my new mainboard uses EFI. Now I have the problem that grub does not upgrade the list of available kernel images on the boot screen.

When I use

grub2-mkconfig -o /boot/efi/EFI/fedora/grub.cfg

the correct list of kernel images is written to the configuration file. But when I boot my PC I get a different (old) list of kernel images, which shows kernel images that are no longer installed.

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what is the output of efibootmgr ?

Rabin ( 2017-07-30 17:41:25 -0600 )edit

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answered 2017-07-31 15:46:26 -0600

octied
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So i found the solution. I only had the line

UUID=... /boot      ext4    defaults        1 2

in /etc/fstab regarding boot, so I had to add

UUID=... /boot/efi  vfat    defaults umask=0077,shortname=winnt 0 2

restart and then regenerate the grub config file

grub2-mkconfig -o /boot/efi/EFI/fedora/grub.cfg

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answered 2017-07-30 17:39:32 -0600

Rabin
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The GRUB2 wiki page is a good place to start with: https://fedoraproject.org/wiki/GRUB_2

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Fedora 25: grub2-efi uses wrong configuration file

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