Re: Startup Disk disagrees with restart options, and restart options is right

Macs R We <[email protected]>
Newsgroups gmane.comp.macosx.general
Message-ID <[email protected]> 
> On Mar 1, 2018, at 8:43 AM, LuKreme <kremels-/[email protected]> wrote:

> Same. I am puzzled but that. If a drive shows up as bootable in the Startup Disk CP, it's generally bootable.

I have seen such behavior before, but only rarely.  

The test in Startup Disk only checks for a certain appropriate set of folders and the user-permissions bit on the volume, it obviously can't check for an uncorrupted system.  If the system is corrupted early enough in the boot path, I have seen a Mac abandon the boot process and choose another partition to boot from.  I'd second the over-the-top reinstall suggestion.
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