Creating backup of Bootcamp fails due to block size

1

I followed the instructions regarding the preparation of the external drive (Formatted the drive with GUID, the partition to FAT). I select my Bootcamp partition in the Sources section, and my newly formatted partition in Destinations. Upon attempting to “Restore To Volume," WinClone 6 unmounts both partitions, asks for my admin password and then presents the following error:

"The image you are are restoring has a block size of 4096 and the destination has a block size of 512. This will cause Windows to be unbootable. Do you want to continue?”

I was aware of the inability to restore from a mismatched block size of an older Mac to the newer Macs (such as my newest generation iMac). However, that does not apply here, as I am attempting to create a new backup. I’ve reformatted the drive multiple times, set the allocation block size to 4096 on the destination drive, but keep getting the same error message for the past 2 hours now. My frustration level is now pretty high. Please help!

2

The physical block size is not something that can be set manually. You can see the physical block size of each disk by running this command on the disk:

diskutil info disk0

(replace disk0 with the disk identifier of each drive). Look for “Device Block Size”. My guess is that the external drive you have has a 512 byte physical block size.

tim