Sunday, August 28, 2016

Overview of Boot Process for Linux

After the kernel loads, several key things happen, including the following:
  • The kernel initializes the basic hardware in your system using the various settings in your BIOS and your CMOS chips.
  • The kernel searches for and uses the initrd or initramfs file system to run the linuxrc program to set up the system.
  • When linuxrc has finished executing, the initrd or initramfs file system is dismounted and the ramdisk is destroyed.
  • The kernel probes for new hardware and loads the appropriate driver modules.
  • The real root (/) file system is mounted.
  • The kernel loads the init or systemd process. 






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