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Edit File: systemd-integration.sh
#!/usr/bin/sh TIMEOUT_USEC=$(cat /run/systemd/reboot-to-boot-loader-menu) TIMEOUT=$(((TIMEOUT_USEC + 500000) / 1000000)) grub2-editenv - set menu_show_once_timeout=$TIMEOUT # Downstream RH / Fedora patch for compatibility with old, not (yet) # regenerated grub.cfg files which miss the menu_show_once_timeout check # this older grubenv variable leads to a fixed timeout of 60 seconds grub2-editenv - set menu_show_once=1