Changes

''A '''Linux distribution''' (often abbreviated as distro) is an operating system made from a software collection that is based upon the Linux kernel and, often, a package management system. Linux users usually obtain their operating system by downloading one of the Linux distributions, which are available for a wide variety of systems ranging from embedded devices (for example, OpenWrt) and personal computers (for example, Linux Mint) to powerful supercomputers (for example, Rocks Cluster Distribution)...''

* '''Select a Linux Distribution''' and '''download'a '' a Linux Distribution Install '''ISO''' file<br>to your Computer ('''Note:download''' Be aware of any required Hardware Requirements for the Linux OS prior to installation(ISO image file or VM file).)* '''Burn an Linux Distribution CD/DVDCreate''', or VM and '''USBinstall''', Linux Distribution or use '''downloaded file when creating a virtual machinerun'''VM file.* Once booted, the installation process '''transfers the live image to a disk (or flash memory)''' and configures the system.* For most distributions, the installation involves a '''guided graphical environment''' help assist with the Linux installation process.<br>

* : Linux is the <u>only </u> OS on the computer . * : Any existing data on your hard disk will be '''erased'''.

* : A '''boot menu''' allows the user to select the desired OS.<br><br>* : '''Advantages''' of Dual-Boot or Multi-Boot:<ol><li>This options option provides a method to access your computer if one OS '''fails to boot-up'''.* Most Linux distributions can </li><li>'''access Access the Windows partition''' if your Windows OS cannot boot-up.* </li><li>This booting method is great for '''troubleshooting''' <br>(''for example:'' booting boot into other Linux OS to confirm that you can connect to the Internet to rule-out eliminate a hardware issuesissue).</li></ol>* : '''Installation Tips:'''<ol><li>It is recommended to '''back up important data''' before proceeding.* </li><li>It is recommended to '''install the Linux OS <u>last</u>''', as other operating systems may not offer a multi-boot option.</li></ol>

'''Virtualized Virtual Machine Installation'''

* : ''Virtualization requires is the process of running a virtual instance of a computer system in a compatible processor: not all processors support that featurelayer abstracted from the actual hardware.* Most recent '''multi-core processors''' support Reference: https://opensource.com/resources/virtualization.* : The virtualized OS is installed and run in a window under another OS.Special software is used to manage the entire process, referred to as the '''hypervisor'''.<br><br>* The installation : '''Advantages''' of Virtualization:<ol><li>You can usually be accomplished run VM from an '''ISO imagefile''' or a '''VM file'''.* </li><li>One or more virtual machines can be run at the <u>same </u> time.* </li><li>The '''guest ''' OS '''shares hardware''' with the '''host ''' OS and possibly other virtualized systems.* Special software is used to manage the entire process, referred to as the </li><li>The '''hypervisorguest'''.* The guest systems have '''network access ''' through the host.</li></ol>* The selection of virtualization software (which allows : '''Installation Tips:'''<ol><li>Virtualization requires a '''compatible processor''': not all processors creation and running of virtual machines) depends mainly on the host OS, although some are cross-platformsupport that feature. Other considerations as </li><li>Your '''BIOS''' should be set to virtualization '''<u>enable</u> Virtualization'''.</li><li>Popular VM software may be featuresfor '''Windows''', support, price '''Apple''' and'''Linux''' OS include:<ul><li>VMware</li><li>Oracle Virtual Box</li></or personal preferences.ul></li></ol>

''A live CD (also live DVD, live disc, or live operating system) is a complete bootable computer installation including operating system which runs directly from a CD-ROM or similar storage device into a computer's memory, rather than loading from a hard disk drive. A Live CD allows users to run an operating system for any purpose without installing it or making any changes to the computer's configuration. Live CDs can run on a computer without secondary storage, such as a hard disk drive, or with a corrupted hard disk drive or file system, allowing data recovery.<br><br>As CD and DVD drives have been steadily phased-out, live CDs have become less popular, being replaced by live USBs, which are equivalent systems written onto USB flash drives, which have the added benefit of having write-able storage. The functionality of a live CD is also available with a bootable live USB flash drive, or an external hard disk drive connected by USB.''

In this sectioninvestigation, you will first ''download'' and ''install'' the '''VirtualBox''' VM application on your home computer,<br>then you will then ''download'' and unzip the '''Knoppix Live Distribution VM''' file to your computer.

# '''Click''' the following link to access the '''Oracle Virtualbox''' application download website:<br>[https://www.virtualbox.org/wiki/Downloads https://www.virtualbox.org/wiki/Downloads]<br><br>

#Enter the following command: <span style="color:blue;font-weight:bold;font-family:courier;">bash /home/murray.saul/scriptsmyscripts/week7-check-1</span><br><br>

Let's learn to run ''open-source '' applications on your graphical Knoppix Linux Live distribution.<br>But first, let's '''download ''' and run a '''shell script''' that will display '''dialog boxes''' in your graphical Knoppix VM.

# Issue the following: <span style="color:blue;font-weight:bold;font-family:courier;">./week7-demo-1</span><br><br>Did the shell script run?<br><br>'''NOTE:''' The shell script uses the '''zenity''' command to create dialog boxes. Although you may need to install this application in other Linux distributions, it is automatically included with the Knoppix distribution. We don't learn about the ''zenity'' command in this course, but here is a link to some simple examples using this command in case you are interested: [https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=&ved=2ahUKEwiKztuinuruAhXwm-AKHSGnCq8QFjAAegQIBBAC&url=https%3A%2F%2Fwiki.cdot.senecacollege.ca%2Fwiki%2FHow_to_Use_Zenity&usg=AOvVaw3pDy1Afw8Vw9-09cs5zE6Y How to Use Zenity]<br><br>'''REMEMBER:''' You '''CANNOT''' run this graphical shell script on your '''Matrix''' server, <br>since Matrix is only a '''COMMAND-LINE environment''' and NOT a '''graphical environment'''.<br><br>

# When finishing finished browsing the Knoppix WIKI, '''close''' the ''Firefox'' web-browser.<br><br># Use the ''Knoppix start menu'' to select '''Office''' and then select '''LibreOffice - Writer'''<br>to launch a ''word processor processing'' application.<br><br>'''NOTE:''' Libre office is a <u>free</u> '''open-source suite''' of productivity tools for<br>creating ''documents'', ''spreadsheets'' and ''slide presentations''.<br><br>

# '''Launch''' a new Knoppix Linux Live session (''[https://wiki.cdot.senecacollege.ca/wiki/Tutorial7:_Installing_Linux_/_Live_Linux_/_Virtualization#INVESTIGATION_1:_BOOTING_KNOPPIX_.28LIVE_LINUX.29_VIA_VIRTUALBOX INVESTIGATION 1]'', '''step #7''').<br><br>