When mounting an image of a journaled filesystem, a couple of shortcuts repeatedly save me time and energy. First, VFAT and NTFS disks reserve (generally) the first 63 sectors for the partition table and meta info. Considering 512 is a very common size for sectors, 32256 becomes a very good number to remember.
32256 is the number of bytes you generally need to offset when mounting a volume.
This offset is done in mount as follows:
About the author
Brooks Garrett is a dedicated technologist who specializes in information security. Brooks has spent over 10 years implementing security programs for both the public and private sector including some of the biggest names in the Fortune 500. When he's not managing risk in the corporate environment you can find him at the local firestation where he is a volunteer firefighter.