@edyatl it was discussed in length before: Install-grub questions, Install-grub: a new way to keep your EFI/MBR in-sync with grub package. If you want to go into history lane and find out why we created install-grub be my guest: FS#75701 : grub 2:2.06.r322.gd9b4638c5-1 issue
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