I'm trying to create a dd image which contains two partition. The first is a ext3,(19MB) the 2nd is fat32.(16MB)
I use one 512M usb stick to create image. And use
dd if=/dev/sdc of=image.dd bs=1M count=35 # 35=19+16
I tried to put it on another 2G usb stick by
dd if=image.dd of=/dev/sdb bs=1M
Then I try to use gparted to view the partition on /dev/sdb. The ext3 partition is OK. But the fat32 partition failed. I've compared the MBR between sda & sdb they are same.
dd if=/dev/sdb of=image2.dd bs=1M
diff image.dd image2.dd Binary files sdb.dd and sdc.dd differ
It is very strange, even when I just read the written image, it is different.
dd if=image.dd of=/dev/sdb bs=1M count=35 dd of=image2.dd if=/dev/sdb bs=1M count=35 diff image.dd image2.dd differ