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# View the contents of the DVD drive using the file manager application (called '''nautilus'''). Change to the Packages subdirectory. What does this subdirectory contain?
# Use a graphical file manager to view the contents of the DVD in your machine.<br><br>'''TIP:''' If you are having problems locating pathname to your DVD, open a terminal, login as '''root''', issue the command: '''mount''', and look for a path-name containing your Centos Install DVD and use that path-name when required later in this section.<br><br>
# Open a shell terminal and use the Linux command '''cd''' to change to the '''Packages''' sub-directory (hint: similar path-name as USB, but use '''Centos 7 x86_64/Packages''' and use '''quotes''' " " around full path-name since there are spaces within the pathname).<br>There are a few ways for yum to install applications:<ul><li>'''yum localinstall''' (install rpm files located from the machine via downloads to hard-drive, DVD, etc)</li><li>'''yum install''' (install applications from an online repository)</li></ul>
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<li value="11">Within the '''Packages''' subdirectory of the '''Centos7 Full Install DVD''', locate the '''rpm''' file that contains the '''xchat''' application (note the full path-name of the file). What do you think is the purpose of the numbers also contained in the filename?</li>
