I have Ubuntu 17.10 on USB Flash drive and in VM VirtualBox.
I have a QNX4 image file on an external hard drive that I can mount on the computer running from the Ubuntu 17.10 USB flash drive.
I have another computer with Ubuntu 17.10 running in VM VirtualBox Version 5.2.2 r119230 (Qt5.6.2) that gives me an error when trying to mount the QNX4.img file. The error I get is
"/mnt/QNX4_Drive: wrong fs type, bad option, bad superblock on /dev/loop0, missing codepage or helper program, or other error."
I have the external hard drive shared from host to virtual machine.
I perform on system running Ubuntu from USB
modprobe qnx4 mount -t qnx4 QNX4.img /mnt/QNX4_Drive -o loop
which works fine and I can access the files.
on Windows 7 pro system running VM VirtualBox running Ubuntu
modprobe qnx4 mount -t qnx4 /media/sf_C_DRIVE/QNX4.img /mnt/QNX4_Drive -o loop
Produces the error message listed above
Is there something else I need to do on the VM VirtualBox to be able to mount image files on the host machine?