Linux · GRUB & Boot Process

In /etc/default/grub, which settings control how long the menu waits and whether it shows in graphics mode at all?

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More in GRUB & Boot Process

On a BIOS-based machine, you swap out a failed software-RAID disk, add its partitions back with mdadm, and the array resyncs cleanly. Why can that disk still fail to boot the machine?

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On an EFI machine, where does GRUB's code physically live, and what must be true of that partition?

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