I have a new MacBook air 2013 running OS X Mavericks and I had partitioned it for Bootcamp and installed Windows, and everything was fine. However, I found that 40GB for Windows wasn't nearly enough for me, and being successful with doing this in the past, I decided to resize the partitions rather than do a wipe and reinstall. I first booted into my Mac partition and resized it down from 80GB to 65GB. I first tried using Disk Utility to do this, but upon clicking "apply" it popped up with an exception and crashed. I assume this is an issue with OS X Mavericks beta, but I thought it was worth mentioning. So, instead I just resized the partition using Terminal, and it worked fine, and my Mac partition was still working.
I then rebooted to Windows, and tried to extend the Windows partition to fill the extra space left by my shrinking of the Mac partition. I couldn't do this as the 100MB Windows boot partition was in between the two (the unallocated space and the Windows partition), so I instead opted to just format the unallocated space as a 15GB NTFS partition. After doing that successfully, I attempted to reboot back into my Mac partition, only to discover that it wasn't showing up in the boot menu. I booted into the Internet Recovery and discovered that while the Mac partition was still "there", it now shows up to Disk Utility as an unrecognized partition with a crazy string of letters and numbers.
Oddly, Disk Utility sees the 15GB NTFS partition I created as an "unrecognized partition" as well, yet it exists in Windows as normal. So..... why did this happen? All I did was resize it, I didn't touch the EFI boot partition at all, I don't see why this happened. Is there anything I can do to recover it or will I be forced to wipe it and start over?
I then rebooted to Windows, and tried to extend the Windows partition to fill the extra space left by my shrinking of the Mac partition. I couldn't do this as the 100MB Windows boot partition was in between the two (the unallocated space and the Windows partition), so I instead opted to just format the unallocated space as a 15GB NTFS partition. After doing that successfully, I attempted to reboot back into my Mac partition, only to discover that it wasn't showing up in the boot menu. I booted into the Internet Recovery and discovered that while the Mac partition was still "there", it now shows up to Disk Utility as an unrecognized partition with a crazy string of letters and numbers.
Oddly, Disk Utility sees the 15GB NTFS partition I created as an "unrecognized partition" as well, yet it exists in Windows as normal. So..... why did this happen? All I did was resize it, I didn't touch the EFI boot partition at all, I don't see why this happened. Is there anything I can do to recover it or will I be forced to wipe it and start over?