I can't tell you how to use it, you'll have to read the documentation. You need to figure out what the start and end sectors are for the real BOOTCAMP partition. It's not in the MBR and it's not in the GPT.
So the bottom line is that the necessary partition information to locate the start and end sectors for the Windows volume is simply lost. Before the upgrade, the installer checks the validity of the partition maps and file system it found that the MBR and GPT weren't sync'd and it overwrote the correct MBR with stale information in the GPT.
430 camptune upgrade#
It was the upgrade to 10.9 that did this (and there was this same problem when people were upgrading to 10.8 and 10.7).
430 camptune update#
The firmware update didn't change anything. This left the GPT partition, which is what OS X uses, unchanged and thus incorrect. Because Windows boots in BIOS mode on Apple hardware, it only uses MBR partitions, so its resize utilities normally only update the MBR during resize. Everything else will cause data loss, without warning, and that even includes Apple Disk Utility.Īt some point, you used Disk Utility to resize the OS X volume, then went to Windows to resize the BOOTCAMP volume. The alternative is to use a 3rd party tool explicitly designed for Bootcamp volumes. Apple documentation says if you need to change the size of the BOOTCAMP volume, you have to use Bootcamp Assistant to delete it, and create a new partition layout, and reinstall Windows. Number Start (sector) End (sector) Size Code Nameġ 40 409639 200.0 MiB EF00 EFI system partitionģ 85170656 86440191 619.9 MiB AB00 Recovery HDĪny help would be greatly of the fdisk (MBR) result with 4th partition ID set to 0C, and the large gap of free space reported by gpt between the 3rd and 4th partitions, this problem you're having is due to resizing in an unsupported manner. Total free space is 32429797 sectors (15.5 GiB) Partitions will be aligned on 8-sector boundaries Number Boot Start Sector End Sector Status Code Recovery/transformation command (? for help): oĭisk size is 236978176 sectors (113.0 GiB) Gpt show: disk0: Suspicious MBR at sector 0 I was using Win8 and have OSX 10.9ĭisk: /dev/disk0 geometry: 14751/255/63 After installing a firmware update for my Air SSD (discussed here: ) my Boot Camp partition has gone missing during startup.
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