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
009.04.91.35. How does the `10_linux` script contribute to the GRUB2 boot process for Linux-based operating systems? Can you explain its core functionalities in generating boot entries and setting up the boot environment?
Main functions - Loading essential modules - It loads necessary modules - part_gpt and ext2 using insmod command.
Setting root partition - It sets the root partition set root='hd0,gp2' on first hard drive (`hd0`) second partition (`gpt2`).
Searching for partitions - It searches for partitions using UUID filesystem.
Generating boot entries - It executes `blscfg` command which reads BootLoaderSpec (BLS) files from `/boot/loader/entries` which automatically generates GRUB menu entries based on BLS files.