Basics Of Red Hat Os

Installation of the Red Hat...

• 1. Fresh Installation

• 2. Up-gradation

• 1. Attended

• 2. Unattended (Kick start)

• 1. GUI Based (Graphical Installation)

• 2. CLI Based (Text Based Installation )

Source of Installation :

• 1. CD-ROM / DVD-ROM

• 2. Hard Disk

• 3. Network

• a. NFS Server

• b. FTP Server

• c. HTTP Server

What is boot loader?

Boot Loader is the first software program that runs when a computer starts.

It is responsible for loading and transferring control to the operating system kernel software.

The kernel, in turn, initializes the rest of the operating system.

GRUB :

GRUB (GRand Unified Bootloader) is a boot loader package developed to support multiple operating systems and allow the user to select among them during boot-up.

Windows Vs Linux :

Table is pending...

Basic File System Types :

A file system is the logical structure and software routines that control access to the storage space on disks. Unlike most operating systems, Linux supports several file system types.

• EXT file system can handle partitions up to 2 GB in size.

• EXT2 file system can handle partition up to 2 TB- 16TB in size.

• EXT3 file system can handle partition up to 2 TB-16TB in size.

• EXT4 file system can handle partition up to 1 EB in size.

Linux Consoles :

In RHEL 6.0 we have 7 consoles i.e. 1 is graphical based and 5 are text based.

• 1. ALT+CTRL+F7 - Graphical based

• 2. ALT+CTRL+F1 - Text based console

• 3. ALT+CTRL+F2 - Text based console

• 4. ALT+CTRL+F3 - Text based console

• 5. ALT+CTRL+F4 - Text based console

• 6. ALT+CTRL+F5 - Text based console

• 7. ALT+CTRL+F6 - Text based console

Hardware Requirement :

Linux Partitions :

Basic Fundamentals in Linux 6 :

The command prompt : root and mark are users who has currently logged on the computer.

[root@station1~]#

• 1. root : Super user in linux.

• 2. station1 : Computer name or Host name.

• 3. ~ : It presresents the current user is working on to his/her home folder.

• 4. # : It presresents the current user is the super user (Administrator).

[mark@station1~]$

• 1. mark : Normal user in linux.

• 2. station1 : Computer name or Host name.

• 3. ~ : It presresents the current user is working on to his/her home folder.

• 4. # : It presresents the current user is the normal user (Non-Privileged).