Time Machine saves the day!
Tuesday, May 8th, 2012Monday morning did not begin well at the uplink.to campus:
Fortunately I have a 2TB external drive connected to my iMac, running Time Machine every day. You can pick up an external 1TB USB drive for less than $100. If you don’t have one already do it today, especially if you have a laptop. Setting up Time Machine is trivial. If you are on a PC the drive itself comes with backup software pre-installed on it you can start using right away as well as the Windows backup software.
I also have discrete file backups and GitHub repositories, but they are not as consistently updated as the automated backups are. I was a still a little nervous, if the backup file was corrupted, etc, etc. I booted off the Snow Leopard DVD (make sure you know where your install discs are located also!) by inserting the DVD and restarting with C pressed. The Disk Repair Utility was used to erase and reformat the drive. This was a tense few moments. I then ran the Time Machine restore option, picked the most recent backup image date, and the screen you see above was soon replaced with this:
You don’t even have to have the external drive plugged in all the time, just do a full image back up now at least. Beware though that the backup image file itself would become a single point of failure if a main drive goes down. Time Machine images are compressed deltas and have been known to be corrupted, so keep an alternate backup of the most critical files.







