Changes

 {{Admon/caution|THIS IS AN OLD VERSION OF THE LAB|'''This is an archived version. Do not use this in your OPS235 course.'''}}

# You will need to download an image file for the Centos7 LIVE DVD by issuing the following command (best works while at Seneca):<br><b><code><span style="color:#3366CC;font-size:1.2em;">wget http://belmont.senecac.on.ca/centos/7/isos/x86_64/CentOS-7-x86_64-LiveGNOME-15031511.iso</span></code></b><br><br>

:: '''VM Name(and hostname):''' centos1

# '''Step 2 of 5:''' Select '''Use ISO Image''', click the '''Browse''' button, and then the '''Browse Local''' button. Navigate to the location of the downloaded Centos7 LIVE CD image, select the image file and click '''Open'''. When finished, click Forward to proceed. If an error message appears regarding search permissions, just click '''yes''' to proceed.<br><br>'''NOTE:''' Select from the installation menu '''Troubleshooting''' and then select '''Install in Basic Graphics Mode'''.<br><br>

  # <ol><li value="7">'''Step 4 of 5:''' This next step creates a disk file that will be used to simulate the virtual machine's disk drive. Select a size of '''10 GB'''. Click on<br> '''Select managed or other existing storage''' and type the VM image file pathame:<br> '''/var/lib/libvirt/images/centos1.img''' (make certain that the pathname is correct) and then click '''Forward''' to proceed.# </li><li>'''Step 5 of 5:''' Enter the virtual machine name: '''centos1'''. Review the VM information, and click '''Finish'''.<br><br>#</li><li>'''The virtual machine will now start''' - start timing your installation and making notes for '''centos1''' virtual machine in the installation comparison chart in lab2 logbook. The virtual machine is running from the live disc at this point, and no software has been installed on the ''hard drive'' of the virtual machine. The point of a live disk is to allow you to test the distribution to see whether you like it without installing to the hard-drive first.#</li><li>Double-click '''Install to Hard Drive'''. The installation program, similar to the one used when installing CentOS in Lab 1, will appear. You basically perform the same installation operations for this VM including for '''Date & Time''', '''Network & Hostname''', and '''Installation Destination'''. Make certain to use the '''hostname''': '''<u>centos1</u>''' as opposed to ''c7host'') for this installation. (with a few slight differences).#</li><li>For '''Installation Destination''', select the destination option: '''I will configure partitioning''' and then click '''Done'''. Make certain that the '''Partition Scheme''' is set to '''LVM''' and then click on the link: '''Click to Create Automatically'''. '''Done'''. Check to make certain that the root partition has file system type: '''ext4'''.#</li><li>Accept the changes and then click '''Begin Installation'''.#<ol type="a"><li>You will be required to make selections very similar to what you did in lab1.#</li><li>While the system is installing, take a few minutes to record your observations (including slight differences with centos1 install as opposed to c7host install).#</li><li>When the installation process is complete, note the time required to install this system and record in the installation comparison chart of your lab2 logbook.<br><br>#</li></ol></li><li>Power-off your Centos7 LIVE system.#</li><li>You should notice that the Centos7 boot menu appears. Either press '''ENTER''' to start or wait for it to start automatically.#</li><li>Finish the final steps in the setup process (like you did in lab1).</li><li>#You may want to turn off the screen-saver (like you did in Lab1): [http://zenit.senecac.on.ca/wiki/index.php/OPS235_Lab_1_-_CentOS7#Customizing_Your_Account How to Turn-off Screen Saver (lab1)]</li></ol>

<li value="1413">Enable SSH access to your virtual machine with these commands (semi-colon allows commands to be run in sequence):<br /> <b><code><span style="color:#3366CC;font-size:1.2em;">service sshd start; chkconfig sshd on</span></code></b></li>

<li>Enter the following command on your virtual machine to create a firewall exception to allow ssh traffic into the machine:<br /> <b><code><span style="color:#3366CC;font-size:1.2em;">iptables -I INPUT -p tcp -s0/0 -d0/0 --dport 22 -j ACCEPT</span></code></b></li><li>If you are logged in as root, logout to your regular user account.</li><li>Confirm that you can ssh to your virtual machine from the host (your main CentOS installation): <b><code><span style="color:#3366CC;font-size:1.2em;">ssh regularuserid@IPaddress</span></code></b> (where '''regularuserid''' is your regular user login id, and '''IPaddress''' is the '''IP_ADDRESS''' of your '''centos1''' VM!).</li><li>Make certain to '''disable SELinux for centos1''' (refer to lab1)</li><li>Adjust your screen-saver settings and run a '''yum update''' on your centos1 VM before proceeding to ''Part 2'',</li></ol>

:: '''VM Name(and hostname):''' centos2

:: '''VM Name(and hostname):''' centos3

<ol><li><span style="color:green;font-size:1.5em;">&#x2713;</span> '''<u>All</u> VMs''':<blockquote><ul><li>Working virtual machines '''created''' and '''running'''</li><li>'''Disk layout''' and '''size''' correct on all virtual machines</li><li> Proof of '''yum updates'''</li><li>'''All virtual machines backed-up''' (eg. usb stick and/or home directory)</li></ul></blockquote></li><li><span style="color:green;font-size:1.5em;">&#x2713;</span>'''c7host''' machine:<blockquote><ul><li>'''Correct VM image filenames''' contained in '''/var/lib/libvirt/images directory'''</li><li>'''Disk layout''' and '''size''' correct on all virtual machines</li><li>Creation of your bash shell script called '''backupVM.bash'''</li><li>A list of your '''iptables''' rules(command: '''iptables -L''')</li></ul></blockquote></li><li><span style="color:green;font-size:1.5em;">&#x2713;</span> Lab2 logbook notes and '''Installation Comparison chart''' completed</li></ol>