I have a MacBook with an HD of 750 GB; it was partitioned in two parts: the first partition included MacOS X Lion and was about 650 GB; in the second one there was MS Windows 7, with only about 100 GB for the entire system.
Now, I need a bigger partition for Windows. I used the backup creator included in Windows 7, and I obtained a .vhd file. After the backup, I erased everything from the computer, reinstalled OS X and used Disk Utility in order to repartition the HD. Now, the partitions are two: the first (with OSX) of about 250 GB, and the second was of the same size of the one which contained Windows (about 100 GB), formatted in NTFS.
Using the command qemu-img, included in QEMU, I converted the .vhd file in a raw .img file, mounted this file in OS X, and used the dd command in order to copy the first partition of the .img file to the 100 GB partition.
Everything seemed gone fine. I reboot, and using rEFIt (previously installed), I selected the Windows partition. I get an error:
I tried to use the Installation disk of Windows 7 to repair what was wrong. Without success...
IMHO, the problem could be linked to the new hardware configuration, like something written in the Windows partition, that was copied (but not correctly updated) in the new partition.
Please, help me! How can I reuse my Windows partition without losing data???