justin@justin-desktop:/media/c78416fe-f2e4-4a4c-b974-553a09b1a4d4$ sudo mount -o loop,offset=40681603072,ro -t ext4 laptopbackup.img /media/oldlaptop
mount: wrong fs type, bad option, bad superblock on /dev/loop0,
       missing codepage or helper program, or other error
       In some cases useful info is found in syslog - try
       dmesg | tail  or so