Linux booting process
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Transcript of Linux booting process
![Page 1: Linux booting process](https://reader036.fdocuments.us/reader036/viewer/2022091122/589ca1ec1a28abf4148b5fb7/html5/thumbnails/1.jpg)
LINUX BOOTING PROCESS
http://www.nadguli.in/linux-booting-process/
![Page 2: Linux booting process](https://reader036.fdocuments.us/reader036/viewer/2022091122/589ca1ec1a28abf4148b5fb7/html5/thumbnails/2.jpg)
BIOS
http://www.nadguli.in/linux-booting-process/
BASIC INPUT OUT PUT SYSTEM
PERFORMS BASIC SYSTEM INTEGRITY TEST
ALSO CALLED AS POST (POWER ON SELF RTEST)
ACTIVATES MBR
![Page 3: Linux booting process](https://reader036.fdocuments.us/reader036/viewer/2022091122/589ca1ec1a28abf4148b5fb7/html5/thumbnails/3.jpg)
MBR
http://www.nadguli.in/linux-booting-process/
MASTER BOOT RECORD
LOCATED AT FIRST SECTOR OF THE BOOTABLE DEVICE
ACTIVATES GRUB OR BOOT LOADER
![Page 4: Linux booting process](https://reader036.fdocuments.us/reader036/viewer/2022091122/589ca1ec1a28abf4148b5fb7/html5/thumbnails/4.jpg)
GRUB
http://www.nadguli.in/linux-booting-process/
GRAND UNIFIED BOOT LOADER
EXECUTES KERNEL
![Page 5: Linux booting process](https://reader036.fdocuments.us/reader036/viewer/2022091122/589ca1ec1a28abf4148b5fb7/html5/thumbnails/5.jpg)
KERNEL
http://www.nadguli.in/linux-booting-process/
CORE OF LINUX SYSTEM
LOADS ROOT FILE SYSTEM, INIT AND ALL DEVICE DRIVERS
![Page 6: Linux booting process](https://reader036.fdocuments.us/reader036/viewer/2022091122/589ca1ec1a28abf4148b5fb7/html5/thumbnails/6.jpg)
INIT
INITIATE THE RUNLEVEL REFFERING TO THE /ETC/INITTAB
http://www.nadguli.in/linux-booting-process/
![Page 7: Linux booting process](https://reader036.fdocuments.us/reader036/viewer/2022091122/589ca1ec1a28abf4148b5fb7/html5/thumbnails/7.jpg)
RUNLEVELNOTHING BUT MODE OF OS TO BE BOOTED
0 - IS FOR HALT
1 – FOR SINGLE USER MODE
2 - MULTIUSER WITHOUT NETWORK
3 - MULTI USER WITH NETWORK
4- UNUSED
5 - X11 OR GRAPHICAL MODE
6 - REBOOT
http://www.nadguli.in/linux-booting-process/
![Page 8: Linux booting process](https://reader036.fdocuments.us/reader036/viewer/2022091122/589ca1ec1a28abf4148b5fb7/html5/thumbnails/8.jpg)
Thank you
Visit our website
www.nadguli.in
http://www.nadguli.in/linux-booting-process/
http://www.nadguli.in/linux-booting-process/