if i issued

grub-install --target=i386-pc /dev/sdx

grub-install will write the bootsector to the mbr and try to copy the modules to the boot partition, i don't want that, all i want is to rewrite the bootsector to mbr and quit without copying any files.is that possible with grub-install ?


grub-install is going to copy its images, by default to /boot. There's no mention of a way to disable that, but you can tell it to install to another location to leave your /boot alone. For example: grub-install --target=i386-pc --boot-directory=/tmp/delete/me/later /dev/sdx

Be careful with that though. I get the sense grub-install was designed that way for a reason.

See https://www.gnu.org/software/grub/manual/grub.html#Invoking-grub_002dinstall

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