Help, I can't boot solaris in failsafe mode

[xavierkd]

Hi forum members, I am newbie in solaris 10 on x86, and I have a
problem at booting time, because I have the boot archive corrupted, I
have read that I need to boot in failsafe, however I can't because in
the grub, I don't have that option in the menu, In order to create
than option I have to edit the /boot/grub/menu.lst and add these lines

title Solaris failsafe
kernel /boot/multiboot kernel/unix -s
module /boot/x86.miniroot-safe

I think so, but the main problem is that I couldn't find the /boot/
x86.miniroot-safe in that path, neither (I think) in other folder, and
I think although edit the menu.lst file in /boot/grub/ path, because
I changed the timeout option, but didn't applied in the menu
execution?

Do you have any idea?

Thanks in advance