When you know an update has been released, but your Mac can’t find it, or you try to install the update but it fails with an error.
troubleshooting
Disk errors threaten your data: how to detect them, how to use First Aid in Disk Utility, how to use fsck, and what to do with the disk afterward.
Sometimes, a cold boot fixes problems not fixed by a simple restart. Why, and which problems is it better at fixing?
How to tell whether an app has a memory leak, what to do about it, and the differences from a kernel memory leak.
Causes include code signature errors, app translocation, damaged documents, and corrupted or incompatible preference file.
How to capture the panic log, immediate actions likely to help make a diagnosis, and how to read the panic log.
Using the correct term gets us half way to a diagnosis: kernel panics, freezes, app crashes and unresponsive apps are distinguished here.
Is that Mac completely dead due to a severe failure, or could it just be in DFU mode? They aren’t easy to distinguish on most Macs.
New series aimed at troubleshooting Apple silicon Macs, with additions for recent Intel models. You’re invited to contribute your experience and knowledge please.
What does Safe mode do to all those service caches managed by CacheDelete? Does it still check your boot disk too?
The Eclectic Light Company 