I installed ElementaryOS on a separate partition of my HDD.
Not sure what happened but the audio in OSX stopped working after the installation. After trying everything else, I found resetting the PRAM resolved the problem.
However, the boot menu no longer shows on startup. The Linux volume won't even show after holding the option key — only the Mac volume.
I can see the volume in disk utility but it won't mount.
I've tried:
sudo bless -mount /Volumes/disk0s5
But I get:
No mount point for /Volumes/disk0s5
Can't determine mount point of '/Volumes/disk0s5'
Could not statfs() /Volumes/disk0s5
Could not determine filesystem of /Volumes/disk0s5
So, ermm…, I'm stuck.
How do I get my boot options back?
Best Answer
Just reinstall rEFInd http://sourceforge.net/projects/refind/
This way this runs before Grub which seems to not work very well to boot the Mac OS side of the system