No, extended partitions are basically just shells which house non-primary partitions, in this case sda5 sits inside it. Since you're getting a 'no such file' error with every partition, I guess you installed Wubi to a non-standard location. Unmount sdb1 (don't forget "sudo" at the start of the umount command) and open re-mount sda1, then runNo way to look in sda2?to open the file browser. Take a look around and see if you can find your root.disk, and make a note of it's location, then rerun the mount/loop command with the correct location.Code:nautilus /win
Alternatively, if it's easier for you, just reboot to Windows and check it's location from there.