One of the much-heralded new features of Mac OS X Leopard is, of course, the Time Machine backup system. Its key selling point – apart from the Dr Who-style restore screen – is the fact that it’s a “no-click” backup solution; you just plug in an external backup drive, and Time Machine gets on with the job of backing up automatically.
This is all nice and reassuring – or is it? Well, not when you get errors like these appearing every couple of weeks:
I’ve seen the Unable to complete backup error on both our iMacs over the last few weeks. It’s a fairly common occurrence. I tried the trick of repartitioning using GUID rather than MBR on my Mac, which certainly reduced the errors, though I still get them.
And what’s with that second error? The backup needs 13.8 GB, but only 20.3 GB are available? Looks like someone at Apple needs to go back to maths classes. How can I trust a backup system that can’t subtract two numbers?
Frankly I’m tempted to go back to using rsync for my backups until Apple makes Time Machine more stable. At least I know rsync works!