I'm trying to compile the Intel PCM v2.9 on a OS X Yosemite. The compilation of the MacMSRDriver completes successfully, unfortunately I cannot open the kernel module. I am getting the following error:
9/10/15 4:27:52.129 PM com.apple.kextd: ERROR: invalid signature for com.intel.driver.PcmMsr, will not load
Any suggestions on what might be going wrong?
Because the driver (PcmMsr.kext) is not signed, it will not load due to System Integrity Protection (aka rootless) on OS X 10.11 and later. The only option to work around this issue is to disable System Integrity Protection, which requires booting to the recovery partition.