Detect the motherboard model or especifc device in GRUB

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Hy i have a question,

its possible execute a bash script on grub commando line? (option "c" on grub), to be more especificle a have two motherboards and i need to detect her before the kernel is loaded,

the bash script for example verify with "lspci" and make a "choice" in to menu.lst, and booting the kernel for especificle hardware


regards



tks sorry for my poor english