2. Booting Procedure (Real Time)

2. Boot Procedure

1. Boot prom:

ü  Prom runs the POST

ü  Search for the bootable devices

ü  Read the boot block

ü  Load the boot block

2. Boot program:

ü  Load the ufs boot block

ü  Try to load the secondary boot block

ü  If boot block corrupted

 # cd /usr/platform/’uname –i ‘/lib/fs/ufs

3. Kernel :

ü  Read the etc/system file, where etc/sytem has total kernel information

ü  It initializes all the modules itself

4. Init :

ü  Read  the etc/init file

ü  Total run level information]

ü  Svcstatd deamons runs

Issue 1: If boot block corrupted what you do?

A: run the following command and restore boot

 # cd /usr/platform/’uname –i ‘/lib/fs/ufs