grub-setup − manual page for grub-setup (GRUB) 1.96
grub-setup [OPTION]... DEVICE
Set up images to boot from DEVICE. DEVICE must be a GRUB device (e.g. ‘‘(hd0,1)’’).
−b, −−boot−image=FILE
use FILE as the boot image [default=boot.img]
−c, −−core−image=FILE
use FILE as the core image [default=core.img]
−d, −−directory=DIR
use GRUB files in the directory DIR [default=/boot/grub]
−m, −−device−map=FILE
use FILE as the device map [default=/boot/grub/device.map]
−r, −−root−device=DEV
use DEV as the root device [default=guessed]
−h, −−help
display this message and exit
−V, −−version
print version information and exit
−v, −−verbose
print verbose messages
Report bugs to <bug−grub AT gnu DOT org>.