https://en.wikipedia.org/wiki/Comparison_of_bootloaders
https://en.wikipedia.org/wiki/Command-line_interface
https://en.wikipedia.org/wiki/List_of_command-line_interpreters
https://en.wikipedia.org/wiki/Comparison_of_command_shells
bootloader busybox bios uefi bootloader applet
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https://www.eeweb.com/embedded-linux-design-file-system-and-bootloader/
Generating U-Boot and U-Boot Device Tree | Documentation | RocketBoards.org
Introduction to Embedded Bootloader Intel SSG/SSD/UEFI. U-Boot Bios-lt Blob(Boot Loader Object Bootldr ARMboot
available bootloaders relative list available bootloaders relative list lilo grub loadlin etherboot coreboot blob pmon shboot ubootredboot
