Linux backup method of Sun VirtualBox

The backup method is to use the quick fix toolbar to back up data. If the system crashes, you can use the original backup system, but I have tried it, backup can still be used as long as it does not involve the system, but like I upgraded the system kernel to the latest 11.04, and restarted the system, the system did not respond, it should have been a configuration change, and the system won't be able to start up. However, in principle, I can use the original backup, but it can be based on no response. Fortunately, I have a physical backup, I recommend that you copy and back up the original files after a period of time,
Note: When importing a backup linux instance, you must reconfigure the network to Host Interface,
Another problem is the ip address setting. Whether it is set to Auto eth0 Auto eth1 or linux host, make sure that the ip address is static (I am used to using static ip addresses ), set the ip address,
Remember to allocate a data space to share data so that you can start linux.