I'm trying to loop mount my root filesystem (a loop file) within a busybox initramfs.
I try to run the command:
mount /rootfs.raw /root
... which works on my Ubuntu laptop, however, I simply get
mount: mounting /dev/loop0 on /root failed: Invalid argument
No matter what combination of options I use, (including loading to /loop0 manually and trying to mount it), the system will not mount the loop device.
Why can't I mount it?