参见:MacBook Pro is slow to start and shutdown
解决启动不了mac电脑固态硬盘方法:
1.启动时按cmd+S,进入Single User Mode
2.在:/ root#下输入命令:
mount -uaw
sudo chown root:admin / (enter password when asked)
sudo kextcache -system-prelinked-kernel
sudo kextcache -system-caches
3. 重启mac