Issue with grub failback

Hallo,

I have a primary and a backup boot partition,

I edited the /etc/grub.conf with the failback option and I want grub to mount the backup boot partition if primary one fails, automatically.

So, after a reboot and a primary boot partition failure, I hit the error 17 - cannot mount selected partition and the system hangs

with "press any key..." message, so manual intervention needed .

Is there a way to bypass the "press any key message" ?

Thanks in advice,
Vincenzo