13,420
edits
Changes
no edit summary
# Shut down all of the virtual machines.
# Change to the directory <code>/var/lib/libvirt/images/</code>. Note the size of the files in this directory. What do these files contain?
# Make a compressed backup of the <code>fedora3.img</code> file to your home directory with this command: <code>'''gzip <fedora3.img >~'''YourUserId'''/fedora3.img.backup.gz'''</code><br />('''Note: Make certain to use the redirection signs "<" and ">" properly in the command!''')
{{Admon/caution| Make sure the backup is successful!|If there are any error messages, '''DO NOT''' proceed past this point. You're going to destroy your fedora3 virtual machine and restore it using the backup you have created -- if there are any problems with the backup, you will not have a working virtual machine, and will have to re-install it.}}
<ol>
<li value="4">Compare the size of the compressed and original files.</li>
<li>Start the '''''fedora3''''' VM.</li> <li>'''Make certain that you are in your fedora VM, and <u>not</u> in your Fedora main system.!'''</li> <li>Wreck <u>only</u> your fedora 3 system! Try this command inside the fedora3 virtual machine ('''DO NOT''' do this on your main Fedora system, or you will have to repeat your '''lab1''' and portions of your '''lab2'''!): <code>'''rm -rf /*'''</code></li> <li>Shut down the VM.If you tried to start the Fedora3 VM, it would not boot since all system files have been removed!</li> <li>Restore the original image from the backup in your home directory (type by typing this command carefully): <code>'''gunzip <~'''YourUserId'''/fedora3.img.backup.gz >fedora3.img'''</code></li>
<li>Restart the VM. Is it working normally?</li>
<li>Create compressed backups of your other virtual machines.</li>