009 Embedded Linux-ARM. StorageQueries and discussion related to usage of Linux on ARM based devices. Linux has been ported to a variety of CPUs which are not only primarily used as the processor of a desktop or server computer, but also ARM, AVR32, ETRAX CRIS, FR-V, H8300, IP7000, m68k, MIPS, mn10300, SuperH, and Xtensa processors, It is also used as an alternative to using a proprietary operating system and toolchain. » 009.04.Boot Loaders
009.04.91.41. Understanding Script Functionality and System Impact:
"Can you explain the role of the 12_menu_auto_hide script in managing the GRUB boot menu's visibility? How does it enhance the boot process for systems that do not typically require user interaction unless there are boot issues?"
script mechanism - Feature check - It checks if `timeout_style` feature is supported by the firmware. Menu show once - If `menu_show_once` variable is set, the script clears this variable, saves the change and sets a longer timeout to ensure the menu is visible. Auto hide logic - Fast boot - if `fastboot` is enabled, it sets the menu to appear without delay (`timeout=0`), essentially skipping it. Otherwise, it sets the menu to be hidden with a brief timeout.
