Mac os x boot caches updating
These are some of the most common issues that users are facing after upgrading their Mac to mac OS Sierra. Some features and functionality of mac OS Sierra depend on i Cloud and you’ll be asked during the setup process to enable some of these features such as Storage Optimization and i Cloud Documents and Desktop.
For most, it has been a seamless experience and we hope that this article will clear out all the issues you’re facing with the new operating system. You can skip them if you want but an annoying issue that some users are facing is that i Cloud constantly pops up for authentication or displays an error.
If you’ve installed mac OS Sierra, but your Mac isn’t starting, you can try resetting the NVRAM and PRAM.
To do so, restart your Mac and then hold down the Cmd Option P R keys together until you hear the startup chime sound twice.
After the second chime sound, release the keys and your Mac should hopefullly boot up without any issues.
While such routines can be beneficial if a system is experiencing slowdowns, and should not adversely affect the system if implemented correctly, there is potential for something to go awry.
Reset the PRAM by restarting your Mac and holding down Cmd Option P R keys.