Q: Bootcamp not bootable after shrinking Macintosh HD partition
Hello. I've had bootcamp installed and working flawlessly for over two years, but I needed some more space on my Windows partition. I shrank the Macintosh HD partition to be able to create a new partition which with I merged with the Windows partition. Windows worked fine after this, but the Macintosh HD partition wouldn't boot or show at the boot menu. I used the recovery tool in the Mac's recovery partition to verify and repair the Macintosh HD partition, which didn't succeed. It pretty much said I had to backup my files and reformat etc. Suddenly today, it was the other way around. The Macintosh HD partition did show on the boot menu and booted fine, but the Windows partition didn't show on the boot menu, but here's the weird part: the temporary partition I created to merge with the Windows partition showed up as a separate partition again (even though it is merged with the original Windows partition). Anyway, I followed the steps of this fix: Re: Repairing Boot Camp after creating new partition and both partitions (Windows now showing as one partition) showed up on the boot menu, but when trying to boot Windows it showed a black screen with a blinking hypen, not able to boot. I booted from the USB stick I used to install Windows 7 to use the system startup repair tool, but it said that it could not fix the issue automatically because (in the log) the "boot manager is missing or corrupt". Please note that with the fix: Re: Repairing Boot Camp after creating new partition I did it to the original partition disk0s5 first, and then also to the temporary partition disk0s4 after to see if that was the problem. I've spent so many hours on this now, that I just want to do the easiest option which is to delete the Windows partitions and recreate Bootcamp, but I'm not able to do anything with the greyed out partitions in Disk Utility.
disk0s1: I guess one of the recovery partitions of OSX (?)
Macintosh HD: Is working fine right now.
win new: the temporary partition which I merged with disk0s5.
disk0s5: Original Bootcamp/Windows partition.
MacBook Pro (Retina, Mid 2012), OS X Yosemite (10.10.4), Windows 7 64-bit
Posted on Dec 3, 2015 8:02 AM