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Linux Boot Process
Load the Kernel image (continued)
- Setup, decompression routines, and the compressed kernel are loaded from the boot device to the first megabyte of system RAM
- Kernel takes over memory control and the boot process, decompressing the rest of itself into memory on its own (bootstrap process)
- verifies kernel code content during decompression
- Kernel is decompressed in protected mode
- Kernel then starts memory management in linear (or flat) memory mode, releasing and cleaning out the memory used back into the free memory pool