Although problems are rare, solutions are very limited. How to test the version system, and the few things you can do to fix it.
troubleshooting
Recognition, immediate action including capturing the panic log, discovering clues as to cause, further investigations to diagnose and address the cause.
A guide to what you can do when a Big Sur or other macOS update goes wrong, from Safe mode to DFU mode and Configurator 2.
Diagnosing a problem on a Mac requires careful observation. In the case of kernel panics, this includes the Panic Log. Otherwise, invaluable information is in the log. If you don’t check the log, your conclusions are likely to be wrong.
For three years, I have maintained a troubleshooting article here which provides a short summary listing of the […]
How can you tell what causing a backup to run so slowly? If it is this bug, what can you do about it? A plain user’s guide.
Surely these problems with Time Machine are old hat and not news? Or are they simply errors occurring with disks or the file system?
How can you tell what was backed up when Time Machine last ran a routine backup? Here’s one way to find out, and detailed info on its support files.
From its first release, Time Machine has been designed to back up over a network. So why the problems? And how you can make your own NAS.
What to do when there are problems with a backup, or you want to delete backups or their contents.
The Eclectic Light Company 