I’m having an issue with my Mac OS X installation. When I start up the system I see a circle with a line through it. I reboot into Recovery Mode by pressing Cmd-R and open Disk Utility. It shows the Macintosh HD partition (/dev/disk0s2) as being “unformatted”. I open Terminal, run fsck_hfs, and it says Macintosh HD is OK.
I can also successfully mount and unmount Macintosh HD with no signs of corruption. I have two questions.
Why does it have a circle with a line through it when I try to boot?
Why does it say unformatted when it clearly isn’t?
I have MacOS High Sierra. Can’t update further. Not sure what version because I can’t get on to check.
/dev/disk0 (internal, physical): #: TYPE NAME SIZE IDENTIFIER 0: GUID_partition_scheme *500.1 GB disk0 1: EFI NO NAME 2.3 GB disk0s1 2: Apple_CoreStorage 448.3 GB disk0s2 3: Apple_Boot Recovery HD 650.0 MB disk0s3 4: Linux Filesystem 48.9 GB disk0s4
Edit 2: Oh my goodness! I completely forgot to say that I set up a dual boot of MacOS and Pop!_OS. That's what the Linux Filesystem is. I have opened GParted on Pop!_OS. This is what I see. It correctly Identifies /dev/sda2 (/dev/disk0s2) as HFS+. Disk Utility identifies it as CoreStorage for some reason.
diskutil cs list:
No CoreStorage logical volume groups found