Here is some more info including mount output.
Initial installation:
admin@asus:/tmp/home/root# mount
rootfs on / type rootfs (rw)
/dev/root on / type squashfs (ro,relatime)
devtmpfs on /dev type devtmpfs (rw,relatime,size=127720k,nr_inodes=31930,mode=755)
proc on /proc type proc...