install device is specified, but grub-install says not...

[Dr Julian Fidge]

Report bugs to <address@hidden>.

address@hidden sbin]# mount -t ext2 /dev/fd0 /mnt/floppy/
mount: /dev/fd0 already mounted or /mnt/floppy/ busy
mount: according to mtab, /dev/fd0 is mounted on /mnt/floppy

address@hidden sbin]# ./grub-install --root-directory=/mnt/floppy/
install_device not specified.
Usage: grub-install [OPTION] install_device
Install GRUB on your drive.

 -h, --help              print this message and exit
 -v, --version           print the version information and exit
 --root-directory=DIR    install GRUB images under the directory DIR
                         instead of the root directory
 --grub-shell=FILE       use FILE as the grub shell
 --force-lba             force GRUB to use LBA mode even for a buggy
                         BIOS
 --recheck               probe a device map even if it already exists

INSTALL_DEVICE can be a GRUB device name or a system device filename.

Report bugs to <address@hidden>.

address@hidden sbin]# ./grub-install --root-directory=/dev/fd0/
install_device not specified.
Usage: grub-install [OPTION] install_device
Install GRUB on your drive.

 -h, --help              print this message and exit
 -v, --version           print the version information and exit
 --root-directory=DIR    install GRUB images under the directory DIR
                         instead of the root directory
 --grub-shell=FILE       use FILE as the grub shell
 --force-lba             force GRUB to use LBA mode even for a buggy
                         BIOS
 --recheck               probe a device map even if it already exists

INSTALL_DEVICE can be a GRUB device name or a system device filename.

Report bugs to <address@hidden>.