mac os disk utility master boot record greyed out

When the Macintosh HD is unable to be mounted in Disk Utility normally, it doesn't show up on Mac either. Fix 1: Repair Macintosh HD with Disk Utility Sometimes when you turn it back on, everything returns to normal. To do this, simply holding down the on/off key until the computer turns off, waiting a few minutes, and then turning it back on. You can try the first and foremost solution: shut down your Mac and restart it up again. Read more > How to fix Macintosh HD not mounted in Disk Utility? Also, rescue your data from the problematic Macintosh HD. This post will show you how to fix the error message 'The disk Macintosh HD can't be unlocked'. How to fix 'The disk Macintosh HD can't be unlocked'? If you have met this issue, read this post carefully to fix the Macintosh HD not mounted problem. > Click the Mount button in Disk Utility but see an error message like ' error'.> Disk not showing up when reinstalling macOS.

> Macintosh HD not showing up in the startup disk.> Macintosh HD not showing up in Disk Utility at all.> The Macintosh HD is greyed out, and you cannot access files on it.> When selecting the Macintosh HD in Disk Utility, the operations are greyed out except the Erase button.If the internal hard drive of Mac, the disk0s2, or the Macintosh HD is not mounted on Mac, you'll see one of these in macOS Recovery mode: macOS can't find a mount point to read and write the Macintosh HD. When the Macintosh HD is not mounted in Disk Utility, it means that the drive is not available for the operating system.

Mac os disk utility master boot record greyed out