Catalina upgrade may fail to update EFI firmware correctly in some Mac models, notable iMac17,1. Check your firmware!
EFI
How reporting EFI firmware versions in SilentKnight will change in the near future, depending on updates.
For the moment, firmware versions for updated Macs are different between those running Catalina, and those running Mojave earlier. How could this affect Sierra, though?
macOS 10.15 Catalina brings EFI firmware updates for all supported models, and subsequent updates have changed those for […]
If you thought that we’d already installed Mojave 10.14.6 Supplemental Update, here’s yet another go at it, with […]
Yesterday’s surprise Supplemental Update for macOS Mojave 10.14.6 does bring EFI firmware updates for four MacBook Pro models, […]
Answers to the most commonly asked questions on my free utilities SilentKnight and its command tool sibling silnite.
Ideal for keeping an eye on networked Macs, this command tool can do everything SilentKnight can in the way of firmware and security update checks.
Increases maximum text size, adds macOS version to the report, and fixes a lot for the latest Catalina beta 4.
First release version of what was EFIcienC, to check EFI firmware, security settings, and security updates automatically.
The Eclectic Light Company 