Transcript Introducing LINUX

Chap 1 ~ Introducing LINUX
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LINUX is a free-stable multi-user operating system that
derives from UNIX operating system
Benefits:
1) Linux is released under GNU (General Public License) – so
its FREE!
2) Access to the source code is unrestricted (can be edited)
3) Multi-user, multi-tasking OS
4) Stable – can be updated on the fly!
5) Many applications such as OpenOffice can run on Linux
6) Security for System Administrator (open source software)
Linux Evolution
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In 1983 a visionary programmer named
Richard Stallman began a movement named
the GNU project.
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In 1991, the GNU project has created a lot of
software includes the GNU C Compiler.
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Linus Trovalds then tweak the source code
and he named the OS as LINUX (LINUs uniX).
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LINUX is FREE under the GNU (General
Public Licence).
Choosing a LINUX distro
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Kernel – bunch of compiled code that provides the operating systems its
core functionality
Distros – bundle the kernel, system level programs, and free user-level
programs in a variety of combinations
• Shell - Special program that allows user to interact by entering certain
command from the keyboard
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Example of LINUX distros;
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Redhat Fedora
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Novell Suse / openSuse (KDE & GNOME)
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PCLinuxOS (KDE)
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Ubuntu (Gnome)
KDE or K Desktop Environment (uses kwin window manager) and GNOME
or GNU Network Object Model (metacity) are desktop environment with
user friendly GUI that provides convience to the user
Evaluating Hardware suitability
Hardware Item
CPU Speed
Memory size
HD drive
capacity
Minimum Requirement
300Mhz min (1.0Ghz ++ is better)
128Mb (256Mb ++ is better)
5Gb min (10Gb ++ is better)
In preparing to install Linux
• Using the Windows XP utilities, run Scan Disk,
Check Disk and Disk Defragmenter procedure
Making space for Linux Installation
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3 possible options;
1) Delete the Windows Partition – only 1 OS
2) Reduce the Windows Partition size – dual boot
3) Add second Hard disk drive – dual boot
Benefits (option 3);
1) Windows space is not reduced
2) Lower risk of data loss
3) Maintain windows OS
4) Distinctly separated two OS
5) Any failure, one drive is affected
Chap 2 ~ Installing the OS
• Download the Novell SUSE ISO Image and burn
the boot-CD image on a CD.
• Change your BIOS setting if it doesn’t boot
directly from CD
• Start the installation process.
• Select KDE as the desktop environment
• Set the partition and install updated packages
• Then, set the root/Administrator password
Root Settings
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root = superuser/Administrator
Certain comands only can be executed by root for example
”reboot”
sudo command – allows command to be executed as if they
were the superuser
Change/define root password
1. pwd = print working directory
2. passwd = change password command
3. logname = reveals the logname
4. sudo passwd root = change the root password
5. su -l = switch user to root
Becoming the superuser
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When a user logs in the working directory is by default a user's home directory
When the root /superuser logs in the working directory is the /root directory