May the father of understanding guide us
About SIP/Rootless: SIP/Rooless Internal in El Capitan In order to check the status of all security mechanisms provided by SIP/Rootless, a tiny little kext was built. WARNING: This kext is for testing purpose ONLY. Download: SIPCheck.command.zip Requirements: 1. OS X 10.11 for the SIP status check; bootargs flags check would be… Read moreKext to check SIP/Rootless status on El Capitan
As many people already found out, the next OS X El Capitan introduced a new mechanism of system security policy called “Rootless”, which officially named “System Integrity Protection” (SIP). According to the security session in WWDC2015, the rootless is a complete infrastructure built for the OS X security and it contains three… Read moreSIP/Rootless Internal in El Capitan and later
For many years (since 10.6.8 maybe), the IOAHCIBlockStorage.kext driver in the OS X only allows TRIM to be enabled on Apple SSD. Such behavior blocks all 3rd party SSD to enable this essential technology while running OS X. Although it was possible to patch the IOAHCIBlockStorage binary to force enable TRIM on… Read moreHOW OS X open the gate for TRIM on 3rd party SSD