Please write a full answer Describe the steps of the system boot process until t
ID: 3876065 • Letter: P
Question
Please write a full answer
Describe the steps of the system boot process until the login prompt of the operating system appears. You should focus on what happens after the bootstrap program has loaded the kernel into RAM and has just handed over control to the kernel. Assume that the loaded kernel has a design based on modules! Note: this leads to another bootstrapping problem: for loading the modules from disk, a file system module is needed. However that module is also located on disk and can thus not be accessed by the plain kernel. Take care to cover the solution to this problem! . You can stop your description at the point when the operating system has decided which program to start for displaying the login prompt. As the boot process is better described for open-source operating systems like Linux, describe the boot process of a Linux-based operating system.|Explanation / Answer
Stages involved in Linux boot processing :
1 . Basic Input/Output System (BIOS) :
2 . Master Boot Record (MBR) :
3. Grand Unified Boot Loader (GRUB) :
4 . Kernel :
5 . init :
6. RUN LEVELS :
There are 7 run levels in which the linux OS runs and different run levels serves for different purpose. They are :
We can set in which runlevel we want to run our operating system by defining it on /etc/inittab file.As per our setting in /etc/inittab the Operating System the operating system boots up and finishes the bootup process.