# 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).

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::* '''yum localinstall''' (install rpm files located from the machine via downloads to hard-drive, DVD, etc)

::* '''yum install''' (install applications from an online repository)

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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>