[SOLVED] [dd] Skip sector with dd
I'm playing around with a script to verify that no changes have been made to my MBR/boot-section.
I'm using dd to create files, and TrueCrypt to encrypt my entire system.
First I make a copy of my MBR+partition table with the command:
Code:
dd if=/dev/sda of=/tmp/mbr bs=512 count=1
Well, that was the easy part. I'm reading an article about the "Evil Maid" attack on system encryption, that tells me that the Truecrypt unencrypted boot-sector is located at the first 63 sectors of /dev/sda/.
Since I have just copied (and checked) the MBR, I'd want to exclude the first sector of 512 bytes from the next command.
Code:
dd if=dev/sda of=tmp/boot bs=512 count=62 skip=1
Will this command skip the first 512 bytes?