Dec 14 14:35:59 zee com.apple.kextd[48]: Untrusted kexts are not allowed Dec 14 14:35:59 zee com.apple.kextd[48]: ERROR: invalid signature for com.apple.kec.corecrypto, will not load Dec 14 14:35:59 zee com.apple.kextd[48]: Signature failure in dependencies for kext load request. Dec 14 14:35:59 zee NetAuthSysAgent[1475]: Loading com.apple.filesystems.smbfs status = -603946989 Dec 14 14:35:59 zee NetAuthSysAgent[1475]: SMB_CreateSessionRef: creating smb handle failed, syserr = Input/output error