Updating firmware on macbookpro
Alternatively, if this is the very first time an error has occurred on that drive, you might choose to erase the volume and restore from a backup. You must have an internet connection to try this option If Internet Recovery isn’t an option, try bringing up .
Press and hold the Option key while booting up your Mac.
A quick look around the blogosphere revealed a few common options; The problem for me was that these solutions all maxed out at 16 or 32GB RAM per host, a limitation of the single socket Xeon’s architecture.
That’s a lot of memory for a home lab server today but to ensure that this server can last five years I really wanted more scalability.
If your OS still allows you to run Verify and Repair Permissions, perform that step as well.
Look for video files and image files as these tend to be your largest and are easy to move.
Once you move those files off your hard drive to another location, delete them from your Macintosh HD and empty the trash.
Verify that this hard drive has AT LEAST 10 GB of available space.
If your Mac doesn’t have 10 GB free, move some of your largest files to another drive (either internal or external–JUST NOT another folder on your Macintosh HD.