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→Investigation 6: How do I backup a virtual machine?
# 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 with this command: <code>gzip <fedora3.img >fedora3.img.backup.gz</code>
{{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.}}
# Compare the size of the compressed and original files.
# Start the ''fedora3'' VM.
# Wreck it! Try this command inside the fedora3 virtual machine ('''DO NOT''' do this on your main Fedora system!): <code>rm -rf /*</code>
# Shut down the VM.
# Restore the original image from backup(type this command carefully): <code>gunzip <fedora3.img.backup.gz >fedora3.img</code>
# Restart the VM. Is it working normally?
# Create compressed backups of your other virtual machines.