I have one 6509E chassis with 2 s720 sups. I can get the one in slot 5 to upgrade and boot to the new IOS but the second in slot 6 comes back wiht an error. See attach. Both have the same bootdisk lines configured and I can see the IOS in both sup-bootdisk directories. If both sups are in, slot 5 boots and shuts down slot 6. If 5 is plugged in it boots fine. If 6 is plugged in it will not boot to the new image and goes to rommon where it will boot to the old image.
What am I missing here?