Fedora update-grub

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After some days of my vacation, my Fedora workstation was not able to boot. I stuck in the grub rescue shell, something was wrong with my MBR-recoord. There was a wrong UUID.

As I tried to update grub (command update-grub) – I stuck again – command not found! This is a Debian/Ubuntu specific command and is not available here.

This is a update-grub in Fedora way:

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grub2-mkconfig -o /boot/grub2/grub.cfg

And finally the MBR installation:

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grub2-install --recheck --no-floppy /dev/sda

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