Complex sentence: Additionally, some sysctl variables cannot be modified after the system is booted, these variables (depending on the variable and the version and flavor of BSD) need to either be set statically in the kernel at compile time or set in/boot/loader.conf.
Split into simpler sentences: Additionally, some sysctl variables cannot be modified after the system is booted. These variables (depending on the variable and the version and flavor of BSD) need to either be set statically in the kernel at compile time or set in/boot/loader.conf.