i=32; sudo dd if=/dev/dm-0 of=/dev/stdout bs=1 skip=$(expr 65536 + $i ) count=$(expr 4096 - $i)|python -c "import crcmod; import sys; crc32c = crcmod.Crc(0x11EDC6F41,initCrc=-1,rev=True,xorOut=0xFFFFFFFF); crc32c.update(sys.stdin.buffer.read()); print('0x{:08x}'.format(crc32c.crcValue));"