Q: Can't boot back into OS X. Partition appears to still be there, but does not show up on PC
Hello everyone,
I've been searching all over the place for fixes of this problem, but I can't seem to find anything that will work.
Yesterday I decided to set up Boot Camp again after I lost it when my computer needed repairs last year. I installed Windows 7 through Boot Camp with no complications (other than the partition initially failing to be created, which I was able to solve) and then upgraded to Windows 10. Everything seemed to be running as expected, but when I went to boot into OS X from the Boot Camp icon in the system tray, my computer simply restarted back into Windows. When I restarted to computer again and pressed alt/option to bring up the startup disks, only the Windows disk showed.
So, I booted my computer into Recovery mode (Internet Recovery mode started up--I read on Apple's site, that this would happen if no OS is installed?) and checked Disk Utility to make sure I hadn't lost all of my files. My Mac partition still seemed to be there and with all files intact. I repaired the disk just to be safe, exited out of Recovery mode and selected OS X as the startup disk, but it still started right back up into Windows. At this point I figured maybe something had happened to OS X or it had gotten deleted somehow, so I went back into Internet Recovery and tried to reinstall OS X, but was unable to (I believe it said the disk couldn't be verified, but I can't remember for sure).
But now the part that has me baffled the most. I ran diskutil list in Terminal, and it listed 13 disks, with Macintosh HD as the last one. Most of the disks were small, only a few megabytes or so, but I have no idea where they came from or what they are.
I'm at a complete loss at this point. Any help is greatly appreciated.
Thank you.
MacBook Pro (13-inch Mid 2012), OS X El Capitan (10.11.1)
Posted on Nov 7, 2015 4:44 PM