UNIX/Linux学习之路_day11

Booting and shutting down

Bootstrapping

Recovery boot to a shell

Steps in the boot process

A typical bootstrapping process consists of six distinct phases:

  1. Reading of the boot loader from the master boot record.
  2. Loading and initialization of the kernel
  3. Device detection adn configuration
  4. Creation of kernel processes
  5. Administrator intervention(single-user-mode only)
  6. Execution of system scripts

kernel initialization

hardware configuration

creation of kernel processes

operator intervention (recovery mode only)

Execution of startup scripts

boot process completion