Dual-boot Win 10 & EFI

[John G Heim]

Anybody know how to save & restore the signature file for a Windows 10 
install on a disk partitioned with GPT? Some time ago, I got a tip on 
this list on doing a dual boot install. Copy some blocks from /dev/sda 
to a temp file and then copy them back after partitioning the disk.

dd if=/dev/sda of=/tmp/fai/signature ibs=1 skip=440 count=4
...
dd if=/tmp/fai/signature of=/dev/sda obs=1 seek=440 count=4

That works great on a machine with an msdos partition table. But it does 
not seem to work on a disk partitioned via GPT.

-- 
John G. Heim; jheim at math.wisc.edu; 608-263-4189