Using the console, users can load and boot a kernel, possibly changing parameters from the default.
#Das u boot tutorial serial
U-Boot runs a command-line interface on a serial port. Regardless of whether the SPL is used, U-Boot performs both first-stage (e.g., configuring memory controllers and SDRAM) and second-stage booting (performing multiple steps to load a modern operating system from a variety of devices that must be configured, presenting a menu for users to interact with and control the boot process, etc.). If there are size constraints, U-Boot may be split into stages: the platform would load a small SPL (Secondary Program Loader), and the SPL would do initial hardware configuration and load the rest of U-Boot. EEPROMs, using SPI or I☬), and NAND flash.
These vary by platform typical examples include SD cards, SATA, NOR flash (e.g. It is loaded by the system's ROM or BIOS from a supported boot device.
It is available for a number of computer architectures, including 68k, ARM, AVR32, Blackfin, MicroBlaze, MIPS, Nios, SuperH, PPC and x86.Ĭontents 1 Functionality 1.1 Boot sources 1.2 Compatible file systems 1.3 Device tree 2 History 3 Usages 4 See also 5 References 6 External linksįunctionality U-Boot is both a first-stage and second-stage bootloader. Das U-Boot From Wikipedia, the free encyclopediaĭas U-Boot (subtitled "the Universal Boot Loader" and shortened to "U-Boot") is an open source, primary boot loader used in embedded devices to package the instructions to boot the device's operating system kernel.
0 kommentar(er)
