Update failed to install.
What do you do next? Just try to download it again? What if you’re running a local Content Caching server?
Software Update
How could Ventura apply security patches to itself while still running, and not require a restart? Here’s what is likely to happen.
The restore.log file on the Update volume contains details of all macOS updates installed since 11.0.1. Here’s a quick guide to its contents and use.
What’s normal for patterns of security data and macOS updates? How to recognise the pathological, which could reflect a security failure.
Some are reporting that recent MRT updates have been installed 15 times. If your Mac affected? Does it keep installing the same security data updates?
If you don’t want to leave Software Update to install updates automatically, here are the options for using softwareupdate, SilentKnight and silnite instead.
You might want an old macOS or OS X installer to build a Virtual Machine, or for an old Mac. Here’s how to get them, and old versions of Xcode.
The macOS 12.1 update is the smallest x.1 update since High Sierra 10.13.1 in October 2017, over four years ago. How come it has bucked the trend in Big Sur?
For those who want macOS updates promptly, SilentKnight can be a help. But don’t use it to download and install an update.
What to do when SilentKnight offers you large macOS updates, or updates which you don’t want to install just yet, and other problems.
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