imn

• fdisk -lu /path/to/img
• Note the value of "Start" defined as cylinders
• Note the value of "Units" defined as bytes
• Multiple Unit with Start to define "Offset"
• mount -t auto -o loop,offset=Offset /path/to/img /mnt

For uboot filesystem

• mount -t sysfs -o loop,offset=Offset /path/to/img /mnt

Error, problem, troubleshooting

Error	Cause
Mount: wrong fs type, bad option, bad superblock on /dev/sdxy, missing codepage or helper program, or other error	May be a hardware error, such as, bad USB connection.