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Chapter 10 : Case Study - UNIX - page 20 / 48

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Ceng 334 - Operating Systems

10-20

Booting UNIX (1)

The first sector of the boot disk (master boot record) is read in and executed

This sector loads the boot program

Boot reads root directory, loads kernel and starts its execution

Kernel reads the rest of the operating system (main C-code section)

C code does some initialization, allocates system data structures, loads device drivers and handcrafts the first process, process 0

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