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# <span style="background-color:yellow">Click the '''options''' tab and then click the '''Advanced''' option at the bottom of the list. On the right-hand side, '''click'''the checkbox to enable the option to '''Boot with EFI instead of BIOS'''. Then click on the '''Hardware''' tab, and then select the '''CD/DV (IDE)''' device and select in the right-side select the radio button for the '''use ISO I<u>m</u>age file'''. Click the '''Browse''' button and specify the path of your downloaded Centos7 Full install DVD (most likely file is contained in your Downloads folder). When finished, click on the '''OK''' button</span>.
# You will return to your c7host VM. Click the play button near the top to boot your c7host VM for the first time.
<li>Start timing your '''centos1''' virtual machine installation.</li>
</ol>
=== Part 3: Completing the Installation ===
=INVESTIGATION 2: COMMON POST-INSTALL TASKS=
===Managing your Virtual Machine===
===Part 1: Turning Off Locked Screen-saver===
Your system automatically enables a '''screen-saver''' application which is a useful security tool to prevent unauthorized viewing of information on a terminal after a certain amount of inactivity. Turning-off the locked screen-saver for this (and other) virtual machine can be useful when waiting for your instructor to come over to "sign-off" your computer lab without having to re-issue user passwords.
===Part 2: Disable SELinux and Perform Software Updates=== SELinux stands for '''Security-Enhanced Linux'''. It is a component that helps to better secure the system to protect against intrusion (hackers). SELinux is enabled upon the default install of CentOS. SELinux can be a good thing, if you take care of it and know how it works. For this course it is strongly recommended that you '''disable SELinux by default''' because we won't have the time to reconfigure it every time the labs make it necessary. '''Perform the following Steps:''' # Disabling SELinux is quite simple.# Edit the file '''/etc/selinux/config'''# In the editing session, set SELINUX to '''disable<u>d</u>''' (from ''targeted'') and save your editing session. '''Answer Investigation 2 observations (all parts and questions) in your lab log book.''' ===Part 3: Accessing Administrative Privileges===
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:: <b><code><span style="color:#3366CC;font-size:1.2em;">grep -i packaging /var/log/anaconda/packaging.log | wc -l'''</span></code></b>
===Part 3: Disable SELinux and Perform Software Updates===
SELinux stands for '''Security-Enhanced Linux'''. It is a component that helps to better secure the system to protect against intrusion (hackers). SELinux is enabled upon the default install of CentOS. SELinux can be a good thing, if you take care of it and know how it works. For this course it is strongly recommended that you '''disable SELinux by default''' because we won't have the time to reconfigure it every time the labs make it necessary.
'''Perform the following Steps:'''
# Disabling SELinux is quite simple.
# Edit the file '''/etc/selinux/config'''
# In the editing session, set SELINUX to '''disable<u>d</u>''' (from ''targeted'') and save your editing session.
'''Answer Investigation 2 observations (all parts and questions) in your lab log book.'''
=== Part 4: Using Shell Scripting to Generate System Information Reports ===
